chore: bump com.google.devtools.ksp from 1.9.23-1.0.20 to 2.0.0-1.0.21

Bumps [com.google.devtools.ksp](https://github.com/google/ksp) from 1.9.23-1.0.20 to 2.0.0-1.0.21.
- [Release notes](https://github.com/google/ksp/releases)
- [Commits](google/ksp@1.9.23-1.0.20...2.0.0-1.0.21)

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

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

Author: dependabot[bot]

build.gradle.kts

@@ -17,7 +17,7 @@ plugins {
     // Gradle Qodana Plugin
     id("org.jetbrains.qodana") version "0.1.13"
     // Generate Moshi adapters.
-    id("com.google.devtools.ksp") version "1.9.23-1.0.20"
+    id("com.google.devtools.ksp") version "2.0.0-1.0.21"
 }
 
 group = properties("pluginGroup")