fix: e2e for action-pull-request, set default ref

Author: ChristophShyper

.github/workflows/cron-e2e-tests.yml

@@ -16,7 +16,7 @@ on:
       image_tag:
         description: Action image tag used when mode=image (for example v1.2.3-test or v1.2.3-rc)
         required: false
-        default: ''
+        default: v1
         type: string
 
 permissions:

.github/workflows/e2e-action-commit-push.yml

@@ -12,7 +12,7 @@ on:
         description: Image tag for docker mode (for example v1.2.3-test or v1.2.3-rc)
         required: false
         type: string
-        default: ''
+        default: v1
   workflow_dispatch:
     inputs:
       mode:
@@ -26,7 +26,7 @@ on:
       image_tag:
         description: Image tag for docker mode (for example v1.2.3-test or v1.2.3-rc)
         required: false
-        default: ''
+        default: v1
         type: string
 
 permissions:

.github/workflows/e2e-action-container-structure-test.yml

@@ -12,7 +12,7 @@ on:
         description: Image tag for docker mode (for example v1.2.3-test or v1.2.3-rc)
         required: false
         type: string
-        default: ''
+        default: v1
   workflow_dispatch:
     inputs:
       mode:
@@ -26,7 +26,7 @@ on:
       image_tag:
         description: Image tag for docker mode (for example v1.2.3-test or v1.2.3-rc)
         required: false
-        default: ''
+        default: v1
         type: string
 
 permissions:

.github/workflows/e2e-action-format-hcl.yml

@@ -12,7 +12,7 @@ on:
         description: Image tag for docker mode (for example v1.2.3-test or v1.2.3-rc)
         required: false
         type: string
-        default: ''
+        default: v1
   workflow_dispatch:
     inputs:
       mode:
@@ -26,7 +26,7 @@ on:
       image_tag:
         description: Image tag for docker mode (for example v1.2.3-test or v1.2.3-rc)
         required: false
-        default: ''
+        default: v1
         type: string
 
 permissions: