Bump schemars from 0.8.19 to 0.8.20 (#1014)

Bumps [schemars](https://github.com/GREsau/schemars) from 0.8.19 to 0.8.20.
- [Release notes](https://github.com/GREsau/schemars/releases)
- [Changelog](https://github.com/GREsau/schemars/blob/master/CHANGELOG.md)
- [Commits](GREsau/schemars@v0.8.19...v0.8.20)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Cargo.lock

@@ -76,7 +76,7 @@ version = "1.8.0"
 features = [ "serde", "v4" ]
 
 [dependencies.schemars]
-version = "0.8.19"
+version = "0.8.20"
 features = [ "uuid1" ]
 
 [dev-dependencies]
@@ -103,7 +103,7 @@ version = "1.7.0"
 features = ["alloc"]
 
 [dev-dependencies.schemars]
-version = "0.8.19"
+version = "0.8.20"
 features = [ "chrono", "uuid1" ]
 
 [dev-dependencies.slog]