fix e2e on main

.github/workflows/ci.yml

@@ -5,6 +5,11 @@ on:
     branches: [ "main" ]
   pull_request:
     branches: [ "main" ]
+  workflow_dispatch:
+    inputs:
+      backend_image: 
+        description: 'Backend image to use in E2E tests (optional, default: ghcr.io/morbalint/kemkas-backend:b8565f8e)'
+        required: false
 
 jobs:
   ci-fe:
@@ -45,7 +50,7 @@ jobs:
       attestations: write
       id-token: write
     outputs:
-      image_tag: ${{ steps.image-tag.outputs.image_tag }}
+      image_sha_tag: ${{ steps.image-tag.outputs.image_sha_tag }}
     steps:
     - uses: actions/checkout@v4
     - uses: docker/setup-buildx-action@v3
@@ -66,7 +71,7 @@ jobs:
           tags+=$'\n'"${image_repo}:latest"
         fi
 
-        echo "image_tag=${sha_tag}" >> "$GITHUB_OUTPUT"
+        echo "image_sha_tag=${sha_tag}" >> "$GITHUB_OUTPUT"
         {
           echo "tags<<EOF"
           echo "$tags"
@@ -91,7 +96,7 @@ jobs:
       attestations: write
       id-token: write
     outputs:
-      image_tag: ${{ steps.image-tag.outputs.image_tag }}
+      image_sha_tag: ${{ steps.image-tag.outputs.image_sha_tag }}
     steps:
     - uses: actions/checkout@v4
     - uses: docker/setup-buildx-action@v3
@@ -112,7 +117,7 @@ jobs:
           tags+=$'\n'"${image_repo}:latest"
         fi
 
-        echo "image_tag=${sha_tag}" >> "$GITHUB_OUTPUT"
+        echo "image_sha_tag=${sha_tag}" >> "$GITHUB_OUTPUT"
         {
           echo "tags<<EOF"
           echo "$tags"
@@ -138,9 +143,9 @@ jobs:
       contents: read
       packages: read
     env:
-      BACKEND_IMAGE: ${{ vars.BACKEND_IMAGE || 'ghcr.io/morbalint/kemkas-backend:b8565f8e' }}
-      FRONTEND_IMAGE: ${{ needs.docker-fe-build.outputs.image_tag }}
-      E2E_IMAGE: ${{ needs.docker-e2e-build.outputs.image_tag }}
+      BACKEND_IMAGE: ${{ github.event.inputs.backend_image || 'ghcr.io/morbalint/kemkas-backend:b8565f8e' }}
+      FRONTEND_IMAGE: ${{ needs.docker-fe-build.outputs.image_sha_tag }}
+      E2E_IMAGE: ${{ needs.docker-e2e-build.outputs.image_sha_tag }}
     steps:
     - uses: actions/checkout@v4
     - name: Log in to GitHub Container Registry