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 Fivetran connectors for efficient data workflows in Kestra.'
@@ -33,26 +33,20 @@ 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-jackson-databind"
     compileOnly "io.micronaut:micronaut-http-client"
 
     implementation group: 'com.fasterxml.jackson.module', name: 'jackson-module-parameter-names', version: jacksonVersion
     implementation group: 'com.fasterxml.jackson.datatype', name: 'jackson-datatype-guava', version: jacksonVersion
     implementation group: 'com.fasterxml.jackson.datatype', name: 'jackson-datatype-jsr310', version: jacksonVersion
 
-    // kestra
+    // Kestra
+    annotationProcessor group: "io.kestra", name: "processor", version: kestraVersion
     compileOnly group: "io.kestra", name: "core", version: kestraVersion
 }
 
@@ -87,6 +81,7 @@ dependencies {
     testImplementation "io.micronaut.test:micronaut-test-junit5"
 
     // 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