Bump com.google.devtools.ksp from 2.1.20-2.0.1 to 2.1.21-2.0.1 (#1846)

Bumps [com.google.devtools.ksp](https://github.com/google/ksp) from 2.1.20-2.0.1 to 2.1.21-2.0.1.
- [Release notes](https://github.com/google/ksp/releases)
- [Commits](google/ksp@2.1.20-2.0.1...2.1.21-2.0.1)

---
updated-dependencies:
- dependency-name: com.google.devtools.ksp
  dependency-version: 2.1.21-2.0.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -31,7 +31,7 @@ kotlin = "2.1.21"
 kotlinx-coroutines = "1.10.2"
 kotlinxSerializationJson = "1.8.1"
 # see https://github.com/google/ksp/releases for version numbers
-ksp = "2.1.20-2.0.1"
+ksp = "2.1.21-2.0.1"
 libphonenumber = "9.0.5"
 mapsCompose = "6.6.0"
 markdowntext = "1.3.2"