Bump agave-geyser-plugin-interface from 2.2.4 to 2.2.6

Bumps [agave-geyser-plugin-interface](https://github.com/anza-xyz/agave) from 2.2.4 to 2.2.6.
- [Release notes](https://github.com/anza-xyz/agave/releases)
- [Changelog](https://github.com/anza-xyz/agave/blob/master/CHANGELOG.md)
- [Commits](anza-xyz/agave@v2.2.4...v2.2.6)

---
updated-dependencies:
- dependency-name: agave-geyser-plugin-interface
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]