build(deps): bump ksp from 2.0.20-1.0.25 to 2.0.21-1.0.28

Bumps `ksp` from 2.0.20-1.0.25 to 2.0.21-1.0.28.

Updates `com.google.devtools.ksp:symbol-processing-api` from 2.0.20-1.0.25 to 2.0.21-1.0.28
- [Release notes](https://github.com/google/ksp/releases)
- [Commits](google/ksp@2.0.20-1.0.25...2.0.21-1.0.28)

Updates `com.google.devtools.ksp` from 2.0.20-1.0.25 to 2.0.21-1.0.28
- [Release notes](https://github.com/google/ksp/releases)
- [Commits](google/ksp@2.0.20-1.0.25...2.0.21-1.0.28)

---
updated-dependencies:
- dependency-name: com.google.devtools.ksp:symbol-processing-api
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: com.google.devtools.ksp
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

gradle/libs.versions.toml

@@ -12,7 +12,7 @@ simbot = "4.7.0"
 suspendTransform = "2.0.20-0.9.4"
 gradleCommon = "0.6.0"
 # ksp
-ksp = "2.0.20-1.0.25"
+ksp = "2.0.21-1.0.28"
 # https://square.github.io/kotlinpoet/
 kotlinPoet = "2.0.0"
 # https://mockk.io/