Bump com.uber.nullaway:nullaway from 0.10.18 to 0.10.21

Bumps [com.uber.nullaway:nullaway](https://github.com/uber/NullAway) from 0.10.18 to 0.10.21.
- [Release notes](https://github.com/uber/NullAway/releases)
- [Changelog](https://github.com/uber/NullAway/blob/master/CHANGELOG.md)
- [Commits](uber/NullAway@v0.10.18...v0.10.21)

---
updated-dependencies:
- dependency-name: com.uber.nullaway:nullaway
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

build.gradle

@@ -26,7 +26,7 @@ dependencies {
 
     // dependencies added by the plugin
     // not used in the plugin code, but here Dependabot will keep them up to date
-    addedDependencies "com.uber.nullaway:nullaway:0.10.18@jar"
+    addedDependencies "com.uber.nullaway:nullaway:0.10.21@jar"
     addedDependencies "com.google.errorprone:error_prone_core:2.24.0@jar"
 
     compileOnly    "org.jspecify:jspecify:0.3.0"