Bump puma from `51494b0` to `b646fc5`
Bump puma from `51494b0` to `b646fc5`

Bumps [puma](https://github.com/puma/puma) from `51494b0` to `b646fc5`.
- [Release notes](https://github.com/puma/puma/releases)
- [Commits](https://github.com/puma/puma/compare/51494b054797f78ef2e936c449791e2b6ceee647...b646fc522337c3c506399e68c0dab034ab98d4fc)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
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