chore: switch to using the new integ-runner (#19826)

This PR is a follow up to #19802 which added all of the new integ test
snapshots that are used by the new `integ-runner` tool. This PR switches
out the old `cdk-integ` tool for the new `integ-runner`.

Updates made:
1. Update all `package.json` files to install and use the `integ-runner`
2. Update `cdk-test` to use `integ-runner`
3. Updates snapshots for 2 tests that were changed since #19802 was merged.


----

### All Submissions:

* [ ] Have you followed the guidelines in our [Contributing guide?](https://github.com/aws/aws-cdk/blob/master/CONTRIBUTING.md)

### Adding new Unconventional Dependencies:

* [ ] This PR adds new unconventional dependencies following the process described [here](https://github.com/aws/aws-cdk/blob/master/CONTRIBUTING.md/#adding-new-unconventional-dependencies)

### New Features

* [ ] Have you added the new feature to an [integration test](https://github.com/aws/aws-cdk/blob/master/INTEGRATION_TESTS.md)?
	* [ ] Did you use `cdk-integ` to deploy the infrastructure and generate the snapshot (i.e. `cdk-integ` without `--dry-run`)?

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

.github/PULL_REQUEST_TEMPLATE.md

@@ -12,6 +12,6 @@
 ### New Features
 
 * [ ] Have you added the new feature to an [integration test](https://github.com/aws/aws-cdk/blob/master/INTEGRATION_TESTS.md)?
-	* [ ] Did you use `cdk-integ` to deploy the infrastructure and generate the snapshot (i.e. `cdk-integ` without `--dry-run`)?
+	* [ ] Did you use `yarn integ` to deploy the infrastructure and generate the snapshot (i.e. `yarn integ` without `--dry-run`)?
 
 *By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

INTEGRATION_TESTS.md

@@ -16,7 +16,7 @@ on what type of changes require integrations tests and how you should write inte
 All Construct libraries in the CDK code base have integration tests that serve to -
 
 1. Acts as a regression detector. It does this by running `cdk synth` on the integration test and comparing it against
-   the `*.expected.json` file. This highlights how a change affects the synthesized stacks.
+   the Cloud Assembly stored in the snapshot (`*.integ.snapshot/`) directory. This highlights how a change affects the synthesized stacks.
 2. Allows for a way to verify if the stacks are still valid CloudFormation templates, as part of an intrusive change.
    This is done by running `yarn integ` which will run `cdk deploy` across all of the integration tests in that package.
    If you are developing a new integration test or for some other reason want to work on a single integration test
@@ -102,14 +102,14 @@ To run the test you would run:
 
 *Note - filename must be `*.js`*
 ```
-npm run cdk-integ integ.lambda.js
+yarn integ --update-on-failed integ.lambda.js
 ```
 
 This will:
 1. Synthesize the CDK app
 2. `cdk deploy` to your AWS account
 3. `cdk destroy` to delete the stack
-4. Save a snapshot of the synthed CloudFormation template to `integ.lambda.expected.json`
+4. Save a snapshot of the Cloud Assembly to `lambda.integ.snapshot/`
 
 Now when you run `npm test` it will synth the integ app and compare the result with the snapshot.
 If the snapshot has changed the same process must be followed to update the snapshot.

packages/@aws-cdk-containers/ecs-service-extensions/.gitignore

@@ -19,4 +19,8 @@ nyc.config.js
 
 junit.xml
 
-!jest.config.js
+!jest.config.js
+!**/*.integ.snapshot/**/asset.*/*.js
+!**/*.integ.snapshot/**/asset.*/*.d.ts
+
+!**/*.integ.snapshot/**/asset.*/**

packages/@aws-cdk-containers/ecs-service-extensions/.npmignore

@@ -24,4 +24,6 @@ tsconfig.json
 junit.xml
 
 test/
-jest.config.js
+jest.config.js
+**/*.integ.snapshot
+**/*.integ.snapshot

packages/@aws-cdk-containers/ecs-service-extensions/package.json

@@ -14,7 +14,7 @@
     "watch": "cdk-watch",
     "lint": "cdk-lint",
     "test": "cdk-test",
-    "integ": "cdk-integ",
+    "integ": "integ-runner",
     "pkglint": "pkglint -f",
     "package": "cdk-package",
     "awslint": "cdk-awslint",
@@ -39,7 +39,7 @@
   "devDependencies": {
     "@types/jest": "^27.4.1",
     "@aws-cdk/cdk-build-tools": "0.0.0",
-    "@aws-cdk/cdk-integ-tools": "0.0.0",
+    "@aws-cdk/integ-runner": "0.0.0",
     "@aws-cdk/aws-autoscaling": "0.0.0",
     "@aws-cdk/cfn2ts": "0.0.0",
     "jest": "^27.5.1",