Update okhttp monorepo to v5.2.1 (#201)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

gradle/libs.versions.toml

@@ -36,7 +36,7 @@ kover = "0.9.2"              # https://github.com/Kotlin/kotlinx-kover
 
 # --- Networking & Serialization ---
 retrofit = "3.0.0"           # https://github.com/square/retrofit
-okhttp = "5.2.0"             # https://square.github.io/okhttp/changelogs/changelog
+okhttp = "5.2.1"             # https://square.github.io/okhttp/changelogs/changelog
 sandwich = "2.1.3"           # https://github.com/skydoves/sandwich
 protobufPlugin = "0.9.5"     # https://mvnrepository.com/artifact/com.google.protobuf/protobuf-gradle-plugin
 protobufKotlin = "4.32.0"    # https://mvnrepository.com/artifact/com.google.protobuf/protobuf-kotlin