Bump com.squareup.okhttp3:okhttp-bom from 4.9.2 to 4.12.0

Bumps [com.squareup.okhttp3:okhttp-bom](https://github.com/square/okhttp) from 4.9.2 to 4.12.0.
- [Changelog](https://github.com/square/okhttp/blob/master/CHANGELOG.md)
- [Commits](square/okhttp@parent-4.9.2...parent-4.12.0)

---
updated-dependencies:
- dependency-name: com.squareup.okhttp3:okhttp-bom
  dependency-version: 4.12.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pom.xml

@@ -44,7 +44,7 @@
       <dependency>
         <groupId>com.squareup.okhttp3</groupId>
         <artifactId>okhttp-bom</artifactId>
-        <version>4.9.2</version>
+        <version>4.12.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>