Ensure returned uri from code actions contain a scheme

Using Neovim 0.10 with the ruby-lsp plugin, standard returns code
actions to allow for quick fixes. They were returning the uri without
the scheme, and that caused neovim to give an error.

To correct for the error, I added an ensure_uri_scheme method to parse
the uri and add the "file" scheme if the uri did not include one.

lib/standard/lsp/diagnostic.rb

@@ -82,7 +82,7 @@ def autocorrect_action
             document_changes: [
               Interface::TextDocumentEdit.new(
                 text_document: Interface::OptionalVersionedTextDocumentIdentifier.new(
-                  uri: @uri.to_s,
+                  uri: ensure_uri_scheme(@uri.to_s).to_s,
                   version: nil
                 ),
                 edits: correctable? ? offense_replacements : []
@@ -113,7 +113,7 @@ def disable_line_action
             document_changes: [
               Interface::TextDocumentEdit.new(
                 text_document: Interface::OptionalVersionedTextDocumentIdentifier.new(
-                  uri: @uri.to_s,
+                  uri: ensure_uri_scheme(@uri.to_s).to_s,
                   version: nil
                 ),
                 edits: line_disable_comment
@@ -163,6 +163,12 @@ def length_of_line(line)
       def correctable?
         !@offense.corrector.nil?
       end
+
+      def ensure_uri_scheme(uri)
+        uri = URI.parse(uri)
+        uri.scheme = "file" if uri.scheme.nil?
+        uri
+      end
     end
   end
 end

test/standard/runners/lsp_test.rb

@@ -65,7 +65,7 @@ def test_did_open
                   edit: {
                     documentChanges: [
                       {
-                        textDocument: {uri: "/path/to/file.rb", version: nil},
+                        textDocument: {uri: "file:///path/to/file.rb", version: nil},
                         edits: [
                           {
                             range: {
@@ -84,7 +84,7 @@ def test_did_open
                   edit: {
                     documentChanges: [
                       {
-                        textDocument: {uri: "/path/to/file.rb", version: nil},
+                        textDocument: {uri: "file:///path/to/file.rb", version: nil},
                         edits: [
                           {
                             range: {
@@ -120,7 +120,7 @@ def test_did_open
                   edit: {
                     documentChanges: [
                       {
-                        textDocument: {uri: "/path/to/file.rb", version: nil},
+                        textDocument: {uri: "file:///path/to/file.rb", version: nil},
                         edits: [
                           {
                             range: {
@@ -139,7 +139,7 @@ def test_did_open
                   edit: {
                     documentChanges: [
                       {
-                        textDocument: {uri: "/path/to/file.rb", version: nil},
+                        textDocument: {uri: "file:///path/to/file.rb", version: nil},
                         edits: [
                           {
                             range: {
@@ -176,7 +176,7 @@ def test_did_open
                   edit: {
                     documentChanges: [
                       {
-                        textDocument: {uri: "/path/to/file.rb", version: nil},
+                        textDocument: {uri: "file:///path/to/file.rb", version: nil},
                         edits: [
                           {
                             range: {
@@ -196,7 +196,7 @@ def test_did_open
                   edit: {
                     documentChanges: [
                       {
-                        textDocument: {uri: "/path/to/file.rb", version: nil},
+                        textDocument: {uri: "file:///path/to/file.rb", version: nil},
                         edits: [
                           {
                             range: {