Bump com.squareup.okhttp3:okhttp from 4.12.0 to 5.2.1

Bumps [com.squareup.okhttp3:okhttp](https://github.com/square/okhttp) from 4.12.0 to 5.2.1.
- [Changelog](https://github.com/square/okhttp/blob/master/CHANGELOG.md)
- [Commits](square/okhttp@parent-4.12.0...parent-5.2.1)

---
updated-dependencies:
- dependency-name: com.squareup.okhttp3:okhttp
  dependency-version: 5.2.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

processor/build.gradle

@@ -12,7 +12,7 @@ dependencies {
 
     implementation 'com.beust:klaxon:5.6'
     implementation 'com.squareup.moshi:moshi:1.15.2'
-    implementation 'com.squareup.okhttp3:okhttp:4.12.0'
+    implementation 'com.squareup.okhttp3:okhttp:5.3.0'
 
     implementation "com.twelvemonkeys.imageio:imageio-jpeg:3.12.0"
     implementation "com.twelvemonkeys.imageio:imageio-batik:3.12.0"