add workflow_call event to all workflows

.github/workflows/build-pull.yaml

@@ -1,6 +1,7 @@
 name: serverless build (pull)
 
 on:
+  workflow_call:
   pull_request_target:
     types: [ opened, edited, synchronize, reopened, ready_for_review ]
 

.github/workflows/build-push-release.yaml

@@ -1,6 +1,7 @@
 name: serverless build (push)
 
 on:
+  workflow_call:
   push:
     branches: [ "main", "release-*" ]
     paths-ignore:

.github/workflows/gitleaks.yaml

@@ -1,5 +1,6 @@
 name: gitleaks
 on:
+  workflow_call:
   pull_request:
     types: [opened, edited, synchronize, reopened, ready_for_review]
 

.github/workflows/images-verify.yaml

@@ -1,6 +1,7 @@
 name: images verify
 run-name: ${{github.event.pull_request.title}}
 on: 
+  workflow_call:
   pull_request:
     branches: 
       - main

.github/workflows/integration-tests-pull.yaml

@@ -1,6 +1,7 @@
 name: integration tests (pull)
 
 on:
+  workflow_call:
   workflow_run:
     workflows: [ "serverless operator build (pull)" ]
     types:

.github/workflows/integration-tests-push.yaml

@@ -1,6 +1,7 @@
 name: integration tests (push)
 
 on:
+  workflow_call:
   push:
     branches: [ "main", "release-*" ]
 

.github/workflows/lint.yaml

@@ -1,6 +1,7 @@
 name: lint
 
 on:
+  workflow_call:
   pull_request:
     paths:
       - 'components/operator/**'

.github/workflows/markdown.yaml

@@ -1,6 +1,7 @@
 name: markdown
 run-name: ${{github.event.pull_request.title}}
 on:
+  workflow_call:
   workflow_dispatch:
   push:
     branches: [ "main", "release-*" ]

.github/workflows/unit-tests.yaml

@@ -1,6 +1,7 @@
 name: unit tests
 
 on:
+  workflow_call:
   pull_request:
     paths-ignore:
       - 'docs/**'

.github/workflows/upgrade-tests.yaml

@@ -1,6 +1,7 @@
 name: upgrade tests
 
 on:
+  workflow_call:
   push:
     branches: [ "main", "release-*" ]