Forgejo Action: Run npm and cargo commands in the CI.

.forgejo/workflows/ci.yml

@@ -26,7 +26,10 @@ jobs:
         cargo clippy
       working-directory: backend
     - name: "Unit Tests"
-      run: cargo test -- --skip api
+      run: |
+        # libxml needs libclang
+        apt install clang
+        cargo test -- --skip api
       working-directory: backend
     - name: "Integration Tests"
       run: cargo test --test api
@@ -55,7 +58,9 @@ jobs:
 
     - name: Typecheck
       run: npm run typecheck
+      working-directory: frontend
 
     - name: Test
       run: npm run test
+      working-directory: frontend