Bump com.google.devtools.ksp from 1.9.20-1.0.14 to 1.9.21-1.0.15

Bumps [com.google.devtools.ksp](https://github.com/google/ksp) from 1.9.20-1.0.14 to 1.9.21-1.0.15.
- [Release notes](https://github.com/google/ksp/releases)
- [Commits](google/ksp@1.9.20-1.0.14...1.9.21-1.0.15)

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

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

settings.gradle.kts

@@ -12,7 +12,7 @@ pluginManagement {
         id("com.diffplug.spotless") version "6.22.0"
         id("com.android.application") version "8.2.0-rc03"
         id("org.jetbrains.kotlin.android") version "1.9.20"
-        id("com.google.devtools.ksp") version "1.9.20-1.0.14"
+        id("com.google.devtools.ksp") version "1.9.21-1.0.15"
         id("com.google.dagger.hilt.android") version "2.48.1"
         id("org.gradle.android.cache-fix") version "3.0"
         id("com.google.gms.google-services") version "4.4.0"