Switch `logging-parent` refs in CI from hashes to tags

dependabot is not able to update `logging-parent` GHA
workflow references that use hashes[1][2].

Switching to tags is safe, since `rel/`-prefixed tags are
protected by INFRA.

[1] dependabot/dependabot-core#8654
[2] dependabot/dependabot-core#6269
2 files changed