Update '.woodpecker.yml'

+ Bumped gradle version

.woodpecker.yml

@@ -1,19 +1,23 @@
 clone:
   git:
-    image: "woodpeckerci/plugin-git:next"
+    image: woodpeckerci/plugin-git:next
+
 pipeline:
   compliance:
+      image: gradle:7.3-jdk17
     commands:
-      - "gradle build"
-      - "gradle test"
-    image: "gradle:7.3-jdk17"
+        - gradle build
+        - gradle test
     when:
-      event: pull_request
+        event: pull_request
+        
   release:
+      image: gradle:7.3-jdk17
+    environment:
+        - MAVEN_PASSWORD: 
+          from_secret: maven_password
     commands:
-      - "gradle publish"
-    secrets: 
-      - maven_password
-    image: "gradle:7.3-jdk17"
+        - gradle publish
     when:
-      branch: master
+        branch: master
+