#3347 chore: Release v0.52.4 Pull request opened by MeltyBot Prepare MeltanoSDK

v0.52.4

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 v0.52.4 release by adding changelog entries, bumping version references, and updating generated template dependencies. Bug Fixes: • Preserve properties with empty JSON schema when flattening them • Use tuple primary keys in tap templates Documentation: • Add v0.52.4 release notes to CHANGELOG.md • Update Sphinx conf.py release setting and GitHub issue template placeholder Chores: • Bump SDK version to 0.52.4 in project metadata, commitizen config, and pyproject.toml • Update cookiecutter mapper, tap, and target templates to depend on singer-sdk~0.52.4 meltano/sdk