Bump com.squareup.okhttp3:okhttp from 4.11.0 to 4.12.0 (#14)

Bumps [com.squareup.okhttp3:okhttp](https://github.com/square/okhttp) from 4.11.0 to 4.12.0.
- [Changelog](https://github.com/square/okhttp/blob/master/CHANGELOG.md)
- [Commits](square/okhttp@parent-4.11.0...parent-4.12.0)

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

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

build.gradle

@@ -74,7 +74,7 @@ ext {
 dependencies {
     compileOnly project.deps.gocdPluginApi
     implementation group: 'com.google.code.gson', name: 'gson', version: '2.10.1'
-    implementation group: 'com.squareup.okhttp3', name: 'okhttp', version: '4.11.0'
+    implementation group: 'com.squareup.okhttp3', name: 'okhttp', version: '4.12.0'
 
     testImplementation project.deps.gocdPluginApi
     testImplementation group: 'org.mockito', name: 'mockito-core', version: '5.6.0'