Add date_nanos support to Time field (elastic#151374)

Fixes: elastic#145855

`Time field` in rule update/create forms shows only the fields with
`date` data type. This PR adds `date_nanos` type as well.

## To verify:

- Create an index that has fields with `date` and `date_nanos` types.
```
PUT test-index-date
{
  "mappings": {
    "properties": {
      "date": {
        "type": "date"
      },
      "timestamp": {
        "type": "date_nanos"
      }
    }
  }
}
```
- Add data with `date` and `date_nanos` data types
Note: You can use
https://www.site24x7.com/tools/time-stamp-converter.html address to
generate date_nanos timestamps with a date you desired.
```
PUT test-index-date/_bulk?refresh
{ "index" : { "_id" : "1" } }
{ "date": "2023-02-15T18:00:00.000Z", "timestamp": 1676480400000}
{ "index" : { "_id" : "2" } }
{ "date": "2023-02-15T18:00:00.000Z", "timestamp": 1676480400000 }
```
- Open a Rule create form and select `Elasticsearch query`
- Select `Query DSL`
- Click on `select an index`
- Type the above index name (test-index-date) in `Indices to query`
input
- Select `timestamp` from time field
- Click on `Test Query` button and expect to see `Query matched 2
documents in the last 5m.`

(cherry picked from commit 58204cf)

x-pack/plugins/stack_alerts/common/build_sorted_events_query.test.ts

@@ -63,6 +63,7 @@ describe('buildSortedEventsQuery', () => {
         sort: [
           {
             timefield: {
+              format: 'strict_date_optional_time||epoch_millis',
               order: 'asc',
             },
           },
@@ -111,6 +112,7 @@ describe('buildSortedEventsQuery', () => {
         sort: [
           {
             timefield: {
+              format: 'strict_date_optional_time||epoch_millis',
               order: 'asc',
             },
           },
@@ -160,6 +162,7 @@ describe('buildSortedEventsQuery', () => {
         sort: [
           {
             timefield: {
+              format: 'strict_date_optional_time||epoch_millis',
               order: 'asc',
             },
           },
@@ -210,6 +213,7 @@ describe('buildSortedEventsQuery', () => {
         sort: [
           {
             timefield: {
+              format: 'strict_date_optional_time||epoch_millis',
               order: 'asc',
             },
           },
@@ -272,6 +276,7 @@ describe('buildSortedEventsQuery', () => {
         sort: [
           {
             timefield: {
+              format: 'strict_date_optional_time||epoch_millis',
               order: 'asc',
             },
           },
@@ -320,6 +325,7 @@ describe('buildSortedEventsQuery', () => {
         sort: [
           {
             timefield: {
+              format: 'strict_date_optional_time||epoch_millis',
               order: 'desc',
             },
           },
@@ -368,6 +374,7 @@ describe('buildSortedEventsQuery', () => {
         sort: [
           {
             timefield: {
+              format: 'strict_date_optional_time||epoch_millis',
               order: 'asc',
             },
           },

x-pack/plugins/stack_alerts/common/build_sorted_events_query.ts

@@ -80,6 +80,7 @@ export const buildSortedEventsQuery = ({
         {
           [sortField]: {
             order: sortOrder ?? 'asc',
+            format: 'strict_date_optional_time||epoch_millis',
           },
         },
       ],

x-pack/plugins/stack_alerts/server/rule_types/es_query/lib/fetch_es_query.test.ts

@@ -130,6 +130,7 @@ describe('fetchEsQuery', () => {
           sort: [
             {
               '@timestamp': {
+                format: 'strict_date_optional_time||epoch_millis',
                 order: 'desc',
               },
             },
@@ -194,6 +195,7 @@ describe('fetchEsQuery', () => {
           sort: [
             {
               '@timestamp': {
+                format: 'strict_date_optional_time||epoch_millis',
                 order: 'desc',
               },
             },
@@ -258,6 +260,7 @@ describe('fetchEsQuery', () => {
           sort: [
             {
               '@timestamp': {
+                format: 'strict_date_optional_time||epoch_millis',
                 order: 'desc',
               },
             },
@@ -349,6 +352,7 @@ describe('fetchEsQuery', () => {
           sort: [
             {
               '@timestamp': {
+                format: 'strict_date_optional_time||epoch_millis',
                 order: 'desc',
               },
             },

x-pack/plugins/stack_alerts/server/rule_types/es_query/lib/fetch_search_source_query.ts

@@ -129,7 +129,14 @@ export function updateSearchSource(
 
   const searchSourceChild = searchSource.createChild();
   searchSourceChild.setField('filter', filters as Filter[]);
-  searchSourceChild.setField('sort', [{ [timeFieldName]: SortDirection.desc }]);
+  searchSourceChild.setField('sort', [
+    {
+      [timeFieldName]: {
+        order: SortDirection.desc,
+        format: 'strict_date_optional_time||epoch_millis',
+      },
+    },
+  ]);
   searchSourceChild.setField(
     'aggs',
     buildAggregation({

x-pack/plugins/triggers_actions_ui/public/common/lib/get_time_options.test.ts

@@ -31,8 +31,12 @@ describe('get_time_options', () => {
   test('if getTimeFieldOptions return only date type fields', () => {
     const timeOnlyTypeFields = getTimeFieldOptions([
       { type: 'date', name: 'order_date' },
+      { type: 'date_nanos', name: 'order_date_nanos' },
       { type: 'number', name: 'sum' },
     ]);
-    expect(timeOnlyTypeFields).toMatchObject([{ text: 'order_date', value: 'order_date' }]);
+    expect(timeOnlyTypeFields).toMatchObject([
+      { text: 'order_date', value: 'order_date' },
+      { text: 'order_date_nanos', value: 'order_date_nanos' },
+    ]);
   });
 });

x-pack/plugins/triggers_actions_ui/public/common/lib/get_time_options.ts

@@ -27,7 +27,7 @@ export const getTimeFieldOptions = (
   const options: TimeFieldOptions[] = [];
 
   fields.forEach((field: { type: string; name: string }) => {
-    if (field.type === 'date') {
+    if (field.type === 'date' || field.type === 'date_nanos') {
       options.push({
         text: field.name,
         value: field.name,