set spotbugs to be manual only

Author: sthulb

.github/workflows/spotbugs.yml

@@ -1,24 +1,25 @@
 name: SpotBugs
 
 on:
-  pull_request:
-    branches:
-      - main
-      - v2
-    paths:
-      - 'powertools-cloudformation/**'
-      - 'powertools-core/**'
-      - 'powertools-serialization/**'
-      - 'powertools-logging/**'
-      - 'powertools-sqs/**'
-      - 'powertools-tracing/**'
-      - 'powertools-validation/**'
-      - 'powertools-parameters/**'
-      - 'powertools-idempotency/**'
-      - 'powertools-metrics/**'
-      - 'powertools-test-suite/**'
-      - 'pom.xml'
-      - '.github/workflows/**'
+  # pull_request:
+  #   branches:
+  #     - main
+  #     - v2
+  #   paths:
+  #     - 'powertools-cloudformation/**'
+  #     - 'powertools-core/**'
+  #     - 'powertools-serialization/**'
+  #     - 'powertools-logging/**'
+  #     - 'powertools-sqs/**'
+  #     - 'powertools-tracing/**'
+  #     - 'powertools-validation/**'
+  #     - 'powertools-parameters/**'
+  #     - 'powertools-idempotency/**'
+  #     - 'powertools-metrics/**'
+  #     - 'powertools-test-suite/**'
+  #     - 'pom.xml'
+  #     - '.github/workflows/**'
+  workflow_dispatch: {}
 
 permissions:
     contents: read