Update .gitea/workflows/deploy.yml (#146)

Reviewed-on: #146

.gitea/workflows/build.yml

@@ -3,7 +3,7 @@ on: [push]
 
 jobs:
   build:
-    runs-on: standard-latest
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v4

.gitea/workflows/deploy.yml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   build:
-    runs-on: standard-latest
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -19,9 +19,12 @@ jobs:
       - name: Build
         run: |
           cd backend
-          docker build -t gitea.seeseepuff.be/seeseemelk/allowance-planner:$(git rev-parse --short HEAD) .
+          docker build -t gitea.seeseepuff.be/seeseemelk/allowance-planner:latest .
 
       - name: Push
         run: |
           cd backend
-          docker push gitea.seeseepuff.be/seeseemelk/allowance-planner:$(git rev-parse --short HEAD)
+          docker push gitea.seeseepuff.be/seeseemelk/allowance-planner:latest
+
+      - name: Trigger watchtower
+        uses: https://gitea.seeseepuff.be/actions/watchtower@master