CI: fix release pipeline

[bayandin]

Problem

We've got 2 non-blocking failures on release pipeline:

• promote-compatibility-data job got skipped presumably because one of the dependencies of deploy job (push-to-acr-dev) got skipped (push images to prod ACR #8940)
• coverage-report job fails because we don't build debug artifacts in the release branch (CI(regress-tests): run less regression tests #8561)

Ref https://github.com/neondatabase/neon/actions/runs/10883910015

Summary of changes

• Always run push-to-acr-dev / push-to-acr-prod jobs, but add skip_if parameter to the reusable workflow, which can skip the job internally, without skipping it externally
• Do not run coverage-report on release branches

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]

4968 tests run: 4804 passed, 0 failed, 164 skipped (full report)

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Flaky tests (1)

Postgres 17

• test_scrubber_physical_gc[4]: debug-x86-64

Code coverage* (full report)

• functions: 31.8% (7412 of 23294 functions)
• lines: 49.9% (59562 of 119380 lines)

* collected from Rust tests only

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_{The comment gets automatically updated with the latest test results
08a479e at 2024-09-16T19:03:18.265Z :recycle:}