CI(build-and-test): add conclusion job

[bayandin]

Problem

Currently, if you need to rename a job and the job is listed in branch protection rules, the PR won't be allowed to merge.

Summary of changes

• Add conclusion job that fails if any of its dependencies don't finish successfully

Checklist before requesting a review

• I have performed a self-review of my code.
• If it is a core feature, I have added thorough tests.
• Do we need to implement analytics? if so did you add the relevant metrics to the dashboard?
• If this PR requires public announcement, mark it with /release-notes label and add several sentences in this section.

Checklist before merging

• Do not forget to reformat commit message to not include the above checklist

[github-actions]

3031 tests run: 2916 passed, 0 failed, 115 skipped (full report)

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Flaky tests (1)

Postgres 14

• test_pg_regress[None]: debug

Code coverage* (full report)

• functions: 32.7% (6933 of 21207 functions)
• lines: 50.1% (54426 of 108678 lines)

* collected from Rust tests only

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_{The comment gets automatically updated with the latest test results
b82f844 at 2024-07-04T07:47:52.923Z :recycle:}