ci: use login shell (bash -l) to fix npm PATH on host runner

.gitea/workflows/deploy.yml

@@ -8,8 +8,9 @@ on:
 jobs:
   deploy:
     runs-on: self-hosted
-    env:
-      PATH: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/home/fam/.cargo/bin:/home/fam/.local/bin
+    defaults:
+      run:
+        shell: bash -l {0}
     steps:
       - name: Checkout
         run: |
@@ -20,7 +21,7 @@ jobs:
           fi
 
       - name: Install frontend dependencies
-        run: cd web && /usr/bin/npm ci
+        run: cd web && npm ci
 
       - name: Deploy to OCI
         run: make deploy-oci