refactor: migrate to Java ServiceLoader for plugin registration

.github/workflows/main.yml

@@ -38,7 +38,7 @@ jobs:
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: 17
+          java-version: 21
 
       - name: Validate Gradle wrapper
         uses: gradle/wrapper-validation-action@v2

build.gradle

@@ -21,8 +21,8 @@ repositories {
     }
 }
 
-sourceCompatibility = 17
-targetCompatibility = 17
+sourceCompatibility = 21
+targetCompatibility = 21
 
 group "io.kestra.plugin"
 description 'Integrate Git for efficient data workflows in Kestra.'
@@ -33,20 +33,16 @@ tasks.withType(JavaCompile) {
 }
 
 dependencies {
-    // lombok
+    // Lombok
     annotationProcessor "org.projectlombok:lombok:$lombokVersion"
     compileOnly "org.projectlombok:lombok:$lombokVersion"
 
-    // micronaut
-    annotationProcessor platform("io.micronaut.platform:micronaut-platform:$micronautVersion")
-    annotationProcessor "io.micronaut:micronaut-inject-java"
-    annotationProcessor "io.micronaut.validation:micronaut-validation-processor"
-
+    // Micronaut
     compileOnly platform("io.micronaut.platform:micronaut-platform:$micronautVersion")
-    compileOnly "io.micronaut:micronaut-inject"
-    compileOnly "io.micronaut.validation:micronaut-validation"
+    compileOnly "io.micronaut:micronaut-context"
 
-    // kestra
+    // Kestra
+    annotationProcessor group: "io.kestra", name: "processor", version: kestraVersion
     compileOnly group: "io.kestra", name: "core", version: kestraVersion
     implementation group: "io.kestra.plugin", name: "plugin-script", version: kestraVersion
 
@@ -87,6 +83,7 @@ dependencies {
     testImplementation "io.micronaut.validation:micronaut-validation"
 
     // test deps needed only for to have a runner
+    testAnnotationProcessor group: "io.kestra", name: "processor", version: kestraVersion
     testImplementation group: "io.kestra", name: "core", version: kestraVersion
     testImplementation group: "io.kestra", name: "repository-memory", version: kestraVersion
     testImplementation group: "io.kestra", name: "runner-memory", version: kestraVersion

src/main/java/io/kestra/plugin/git/Push.java

@@ -13,7 +13,6 @@
 import io.kestra.core.runners.FilesService;
 import io.kestra.core.runners.NamespaceFilesService;
 import io.kestra.core.runners.RunContext;
-import io.micronaut.core.annotation.Introspected;
 import io.swagger.v3.oas.annotations.media.Schema;
 import jakarta.annotation.Nullable;
 import jakarta.validation.constraints.NotNull;
@@ -337,7 +336,6 @@ public static class Output implements io.kestra.core.models.tasks.Output {
     @NoArgsConstructor
     @AllArgsConstructor
     @Jacksonized
-    @Introspected
     public static class FlowFiles {
         @Schema(
             title = "Whether to push flows as YAML files to Git."