Bump schemars from 0.8.12 to 0.8.13 (#763)

Bumps [schemars](https://github.com/GREsau/schemars) from 0.8.12 to 0.8.13.
- [Release notes](https://github.com/GREsau/schemars/releases)
- [Changelog](https://github.com/GREsau/schemars/blob/master/CHANGELOG.md)
- [Commits](GREsau/schemars@v0.8.12...v0.8.13)

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

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

dropshot/Cargo.toml

@@ -75,7 +75,7 @@ version = "1.4.1"
 features = [ "serde", "v4" ]
 
 [dependencies.schemars]
-version = "0.8.12"
+version = "0.8.13"
 features = [ "uuid1" ]
 
 [dev-dependencies]
@@ -103,7 +103,7 @@ version = "0.21"
 features = [ "dangerous_configuration" ]
 
 [dev-dependencies.schemars]
-version = "0.8.12"
+version = "0.8.13"
 features = [ "chrono", "uuid1" ]
 
 [dev-dependencies.slog]