fix: downgrade artifact actions to v3

.gitea/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout koda
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
 
       - name: Login u Gitea registry
         run: |
@@ -30,7 +30,7 @@ jobs:
           echo $TAG > tag.txt
 
       - name: Spremi image tag
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
           name: image-tag
           path: tag.txt
@@ -40,10 +40,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout koda
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
 
       - name: Preuzmi image tag
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v3
         with:
           name: image-tag