[ES|QL] generate function validation tests

[drewdaemon]

Summary

Close #182390

To test

You can test all aspects of the script by first making some changes to packages/kbn-esql-validation-autocomplete/src/validation/validation.test.ts

• delete several tests from an existing function describe block ("block 1"—except don't choose "date_diff" since it has a bunch of custom tests)
• delete another function describe block completely ("block 2")
• change the expected result of several of the tests in a third function describe block ("block 3")

Then, run yarn maketests from within packages/kbn-esql-validation-autocomplete

Expected result

• Block 1 should have the deleted tests restored
• Block 2 should be restored entirely (though it may be moved in the tests file)
• Block 3 should be untouched

Checklist

• Documentation was added for features that require explanation or tutorials
• Unit or functional tests were updated or added to match the most common scenarios

[drewdaemon]

This is the change.

[drewdaemon]

/ci

[drewdaemon]

/ci

[drewdaemon]

/ci

[drewdaemon]

@elasticmachine merge upstream

[drewdaemon]

/ci

[elasticmachine]

Pinging @elastic/kibana-esql (Team:ESQL)

[kibana-ci]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: 1742d37

Failed CI Steps

• Jest Integration Tests #5
• FTR Configs #88

Test Failures

• [job] [logs] FTR Configs #88 / dashboard Reporting Dashboard Reporting Screenshots Preserve Layout downloads a PDF file with saved search given EuiDataGrid enabled

Metrics [docs]

✅ unchanged

History

• 💚 Build #210285 succeeded a2218c3
• 💔 Build #210271 failed ae0a7aa
• 💔 Build #210262 failed 6262eb4

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

[stratoula]

Fantastic job 👏

We are adding a new npm package @elastic/kibana-operations I am not sure if you also want to have a look.