refactor: migrate to Java ServiceLoader for plugin registration

build.gradle

@@ -22,8 +22,8 @@ repositories {
     }
 }
 
-sourceCompatibility = 17
-targetCompatibility = 17
+sourceCompatibility = 21
+targetCompatibility = 21
 
 group "io.kestra.storage"
 description = 'Google Cloud Storage storage plugin for Kestra'
@@ -57,6 +57,7 @@ dependencies {
 
     // kestra
     compileOnly group: "io.kestra", name: "core", version: kestraVersion
+    annotationProcessor group: "io.kestra", name: "processor", version: kestraVersion
 
     // libs
     api platform('com.google.cloud:libraries-bom:26.37.0')
@@ -99,6 +100,7 @@ dependencies {
 
     testImplementation group: "io.kestra", name: "core", version: kestraVersion
     testImplementation group: "io.kestra", name: "core", version: kestraVersion, classifier: 'tests'
+    testAnnotationProcessor group: "io.kestra", name: "processor", version: kestraVersion
 }
 
 /**********************************************************************************************************************\

gradle.properties

@@ -1,4 +1,4 @@
 version=0.17.0-SNAPSHOT
-kestraVersion=[0.16,)
+kestraVersion=[0.17,)
 micronautVersion=4.3.7
 lombokVersion=1.18.32

src/main/java/io/kestra/storage/gcs/GcsStorage.java

@@ -3,6 +3,7 @@
 import com.google.api.gax.paging.Page;
 import com.google.cloud.WriteChannel;
 import com.google.cloud.storage.*;
+import io.kestra.core.models.annotations.Plugin;
 import io.kestra.core.storages.FileAttributes;
 import io.micronaut.core.annotation.Introspected;
 import io.kestra.core.storages.StorageInterface;
@@ -22,20 +23,22 @@
 
 import jakarta.inject.Inject;
 import jakarta.inject.Singleton;
+import lombok.NoArgsConstructor;
 
 import static io.kestra.core.utils.Rethrow.throwFunction;
 
 @Singleton
 @GcsStorageEnabled
 @Introspected
+@Plugin
+@NoArgsConstructor
 public class GcsStorage implements StorageInterface {
     @Inject
     Storage storage;
 
     @Inject
     GcsConfig config;
 
-
     private BlobId blob(String tenantId, URI uri) {
         String path = getPath(tenantId, uri);
         return blob(path);