Bump com.google.devtools.ksp from 2.0.20-1.0.25 to 2.0.21-1.0.25

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

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

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -17,7 +17,7 @@ dokka = "1.9.0"
 kluent = "1.73"
 kotlinxCoroutines = "1.9.0"
 kotlinxSerialization = "1.7.3"
-ksp = "2.0.20-1.0.25"
+ksp = "2.0.21-1.0.25"
 okhttp = "4.12.0"
 retrofit = "2.11.0"
 moshi="1.15.1"