release-24.1: go.mod: bump Pebble to 7f8efc273dac

[annrpom]

Changes:

• 7f8efc27 metamorphic: disable crossversion tests for 24.1
• 8a1c8212 metamorphic: bound time spent level checking

Release note: none.
Epic: none.

Release justification: test-only fixes; non-production changes

[blathers-crl]

Thanks for opening a backport.

Before merging, please confirm that it falls into one of the following categories (select one):

• Non-production code changes. Includes test-only changes, build system changes, etc.
• Fixes for serious issues. Defined in the policy as correctness, stability, or security issues, data corruption/loss, significant performance regressions, breaking working and widely used functionality, or an inability to detect and debug production issues.
• Other approved changes. These changes must be gated behind a disabled-by-default feature flag unless there is a strong justification not to.

Add a brief release justification to the PR description explaining your selection.

Also, confirm that the change does not break backward compatibility and complies with all aspects of the backport policy.

All backports must be reviewed by the TL and EM for the owning area.

[blathers-crl]

✅ PR #149363 is compliant with backport policy

Confidence: high
Backward compatible: true
Explanation: The pull request provides a clear release justification statement indicating that the changes pertain only to 'test-only fixes; non-production changes.' This aligns with the exception policy for changes that affect only non-production code, tests, or development tools. The PR body indicates these are test-only changes, and there is no evidence in the specified file changes (DEPS.bzl, build/bazelutil/distdir_files.bzl, go.mod, go.sum) that suggest production code or critical functionality is affected. These files typically involve dependencies and build configurations, not runtime code.

_{🦉 Hoot! I am a Blathers, a bot for CockroachDB. My owner is dev-inf.}

[annrpom]

TFTR! ('-')7