chore: bump com.squareup.okhttp3:okhttp-bom from 4.11.0 to 4.12.0 (#318)

Bumps [com.squareup.okhttp3:okhttp-bom](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-bom
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]

build.gradle.kts

@@ -24,7 +24,7 @@ version = properties("pluginVersion")
 dependencies {
     implementation("com.squareup.retrofit2:retrofit:2.9.0")
     // define a BOM and its version
-    implementation(platform("com.squareup.okhttp3:okhttp-bom:4.11.0"))
+    implementation(platform("com.squareup.okhttp3:okhttp-bom:4.12.0"))
     implementation("com.squareup.retrofit2:converter-gson:2.9.0")
     implementation("com.squareup.okhttp3:okhttp")
     implementation("com.squareup.okhttp3:logging-interceptor")