Bump schema from 0.7.5 to 0.7.7

Bumps [schema](https://github.com/keleshev/schema) from 0.7.5 to 0.7.7.
- [Release notes](https://github.com/keleshev/schema/releases)
- [Changelog](https://github.com/keleshev/schema/blob/master/.gitchangelog.rc)
- [Commits](keleshev/schema@v0.7.5...v0.7.7)

---
updated-dependencies:
- dependency-name: schema
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -1,2 +1,2 @@
-schema==0.7.5
+schema==0.7.7
 setuptools_rust