[9.2] Add shared validation runner package (#258768)

[tylersmalley]

Backport

This will backport the following commits from main to 9.2:

• Add shared validation runner package (#258768)

Questions ?

Please refer to the Backport tool documentation

[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: 37affea

Metrics [docs]

Public APIs missing comments

Total count of every public API that lacks a comment. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats comments for more detailed information.

id	before	after	diff
@kbn/dev-utils	44	87	+43
@kbn/dev-validation-runner	-	14	+14
total			+57

Public APIs missing exports

Total count of every type that is part of your API that should be exported but is not. This will cause broken links in the API documentation system. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats exports for more detailed information.

id	before	after	diff
@kbn/dev-validation-runner	-	9	+9

Unknown metric groups

API count

id	before	after	diff
@kbn/dev-utils	53	97	+44
@kbn/dev-validation-runner	-	25	+25
total			+69