What's Changed
* [Add `JsonDB.keys()` and `.items()`](https://github.com/legend-exp/pylegendmeta/commit/61aeb556d6d6e36710f99459e00309d09ff85fc5)
* [Fallback to system "all" in `JsonDB.on()` if others are not found](https://github.com/legend-exp/pylegendmeta/commit/d1631fc5e37d070adbd2d3d1e7fb5875d73e0593)
* [Merge analysis metadata into channelmap entries](https://github.com/legend-exp/pylegendmeta/commit/bcf3bcd944d8bf4038320c765a07c6a2ac3b70e8)
* [Remove unneeded `LegendMetadata.channelmap()` `system` and `pattern` arguments](https://github.com/legend-exp/pylegendmeta/commit/1c0da8ef23d16e8cfbff4f2aa6b8c0eabf789ef2)
* [Switch to `psycopg2-binary` package, should ensure portability](https://github.com/legend-exp/pylegendmeta/commit/fdab4c5b587768f6a834fcf4aa0bdd9090dfb510)
* Bump pypa/gh-action-pypi-publish from 1.6.4 to 1.8.4 by dependabot in https://github.com/legend-exp/pylegendmeta/pull/23
* chore: update pre-commit hooks by pre-commit-ci in https://github.com/legend-exp/pylegendmeta/pull/24
**Full Changelog**: https://github.com/legend-exp/pylegendmeta/compare/v0.7.4...v0.7.5