Remove checklist from the PR template

[bayandin]

Problem

Once we enable the merge queue for the main branch, it won't be possible to adjust the commit message right after pressing the "Squash and merge" button, and the PR title + description will be used as is.

To avoid extra noise in the commits in the main with checklist leftovers, I propose removing the checklist from the PR template, and keeping only the Problem / Summary of changes.

Summary of changes

• Remove the checklist from the PR template

[github-actions]

5381 tests run: 5158 passed, 1 failed, 222 skipped (full report)

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Failures on Postgres 17

• test_sharding_split_failures[failure8]: debug-x86-64

# Run all failed tests locally:
scripts/pytest -vv -n $(nproc) -k "test_sharding_split_failures[debug-pg17-failure8]"

Flaky tests (3)

Postgres 17

• test_sharding_split_failures[failure13]: debug-x86-64
• test_sharding_split_smoke: debug-x86-64

Postgres 15

• test_peer_recovery: release-arm64

Code coverage* (full report)

• functions: 31.7% (7871 of 24806 functions)
• lines: 49.4% (62275 of 126036 lines)

* collected from Rust tests only

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_{The comment gets automatically updated with the latest test results
56bc420 at 2024-11-10T23:18:11.975Z :recycle:}