Bump okhttp from 5.1.0 to 5.2.1 (#470)

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -8,7 +8,7 @@ kotlin = "2.1.21"
 kotlinpoet = "2.2.0"
 mavenplugin = "0.34.0"
 moshi = "1.15.2"
-okhttp = "5.1.0"
+okhttp = "5.2.1"
 okio = "3.16.1"
 protobuf = "4.32.1"
 slf4j = "2.0.17"