fix: Update image name for Proposal Review Assistant in workflows

Author: FelixTJDietrich

.github/workflows/build-and-push-docker.yml

@@ -20,7 +20,7 @@ jobs:
         include:
           - name: Proposal Review Assistant
             dockerfile: ./Dockerfile
-            image: ghcr.io/ls1intum/proposal-review-assistant
+            image: ghcr.io/ls1intum/proposal-review-assistant/app
             context: .
     uses: ls1intum/.github/.github/workflows/build-and-push-docker-image.yml@feat/minor-build-improvements
     with:

.github/workflows/deploy.yml

@@ -22,7 +22,7 @@ jobs:
     with:
       environment: "Production"
       docker-compose-file: "./docker/compose.app.yaml"
-      main-image-name: ls1intum/proposal-review-assistant
+      main-image-name: ls1intum/proposal-review-assistant/app
       image-tag: ${{ inputs.image-tag }}
       deployment-base-path: "/opt/proposal-review-assistant"
     secrets: inherit