Use artifacts to persist tfplan

.gitea/workflows/plan-and-apply.yaml

@@ -87,6 +87,10 @@ jobs:
                 body: output
               })
             }
+      - uses: actions/upload-artifact@v4
+        with:
+          name: tfplan
+          path: tfplan
   apply:
     runs-on: ubuntu-latest
     needs: plan
@@ -94,6 +98,10 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: hashicorp/setup-terraform@v3
+      - uses: actions/download-artifact@v4
+        with:
+          name: tfplan
+          path: tfplan
       - name: Terraform apply
         id: apply
         run: terraform apply -auto-approve tfplan