Bump apps/mastodon from `a69ca29` to `9649ca0`
Bump apps/mastodon from `a69ca29` to `9649ca0`

Bumps [apps/mastodon](https://github.com/tootsuite/mastodon) from `a69ca29` to `9649ca0`.
- [Release notes](https://github.com/tootsuite/mastodon/releases)
- [Commits](https://github.com/tootsuite/mastodon/compare/a69ca294738dbe22bacaf9f1fc5a551d99797b35...9649ca0fbe13a86b26b129d6ff925848f261496d)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
eliotsykes/real-world-rails