#3625 chore: Release v0.54.0 Pull request opened by MeltyBot Prepare MeltanoSDK

v0.54.0

for release. Checklist: • Check that the right version is set in all the files. • Groom the changelog for wording or missing entries. • Merge this PR once everything looks good. Release Draft Summary by Sourcery Prepare the Meltano SDK 0.54.0 release with updated changelog and version metadata. New Features: • Document and aggregate new functionality, template improvements, and workflow hardening for the 0.54.0 release in the changelog. Bug Fixes: • Summarize fixes to state handling, template consistency, dependency updates, logging noise, and authentication behavior for inclusion in the 0.54.0 changelog. Enhancements: • Record internal refactors, type annotation updates, and exception hierarchy changes in the 0.54.0 changelog entry. Build: • Bump project version metadata and template dependencies from 0.53.7 to 0.54.0 across pyproject, docs config, and cookiecutter templates. Documentation: • Add detailed documentation notes for upcoming removals, deprecations, and documentation tooling updates in the 0.54.0 changelog entry. meltano/sdk