fix(deps): update retrofit monorepo to v3 (major) (#273)

* fix(deps): update retrofit monorepo to v3

* refactor: use `toRequestBody` & `toMediaTypeOrNull` extension functions

This commit updates the `GraphRequestConverter.kt` file to utilize the Kotlin extension functions `toRequestBody` and `toMediaTypeOrNull` for creating OkHttp `RequestBody` and `MediaType` objects respectively. This change simplifies the code and aligns with modern Kotlin practices.

---------

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

Author: renovate[bot]

gradle/libs.versions.toml

@@ -38,7 +38,7 @@ jetbrains-kotlinx-serialization = "1.8.1"
 koin-core = "4.0.4"
 koin-android = "4.0.4"
 
-square-retrofit = "2.12.0"
+square-retrofit = "3.0.0"
 square-okhttp = "4.12.0"
 
 [plugins]

library/src/main/kotlin/io/github/wax911/library/converter/request/GraphRequestConverter.kt

@@ -20,7 +20,9 @@ import com.google.gson.Gson
 import io.github.wax911.library.annotation.processor.contract.AbstractGraphProcessor
 import io.github.wax911.library.model.request.QueryContainerBuilder
 import okhttp3.MediaType
+import okhttp3.MediaType.Companion.toMediaTypeOrNull
 import okhttp3.RequestBody
+import okhttp3.RequestBody.Companion.toRequestBody
 import retrofit2.Converter
 
 /**
@@ -43,10 +45,10 @@ open class GraphRequestConverter(
             containerBuilder.setQuery(rawQuery)
                 .build()
         val queryJson = gson.toJson(queryContainer)
-        return RequestBody.create(MEDIA_TYPE, queryJson)
+        return queryJson.toRequestBody(MEDIA_TYPE)
     }
 
     companion object {
-        private val MEDIA_TYPE = MediaType.parse("application/json")
+        private val MEDIA_TYPE = "application/json".toMediaTypeOrNull()
     }
 }