build(deps): bump com.squareup.okhttp3:okhttp from 5.1.0 to 5.2.1

Bumps [com.squareup.okhttp3:okhttp](https://github.com/square/okhttp) from 5.1.0 to 5.2.1.
- [Changelog](https://github.com/square/okhttp/blob/master/CHANGELOG.md)
- [Commits](square/okhttp@parent-5.1.0...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-minor
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -102,7 +102,7 @@ mockitoInline = "5.2.0"
 mockitoKotlin = "6.1.0" # maybe can remove mockitoCore and its usage with release > 5.4.0
 mockk = "1.14.5"
 nanohttpd = "2.3.1"
-okhttp = "5.1.0"
+okhttp = "5.2.1"
 # https://github.com/protocolbuffers/protobuf/releases
 protobufKotlinLite = "4.33.0"
 # ../AnkiDroid/robolectricDownload.gradle may need changes - read instructions in that file