Add npm ci to GitHub actions.

Formatting currently being forced to preserve line endings because for
whatever reason that's only causing problems in CI.

.github/workflows/build.yml

@@ -15,6 +15,11 @@ jobs:
         with:
           python-version: "3.10"
 
+      - name: Set up Node
+        uses: actions/setup-node@v2
+        with:
+          node-version: "16"
+
       - name: Install environment
         run: |
           python -m venv ./venv
@@ -40,6 +45,11 @@ jobs:
         run: |
           [IO.File]::WriteAllLines($pwd.path + "\resources\buildnumber", $env:GITHUB_RUN_NUMBER)
 
+      - name: npm ci
+        run: |
+          cd client
+          npm ci
+
       - name: Build binaries
         run: |
           ./venv/scripts/activate

.github/workflows/release.yml

@@ -17,6 +17,11 @@ jobs:
         with:
           python-version: "3.10"
 
+      - name: Set up Node
+        uses: actions/setup-node@v2
+        with:
+          node-version: "16"
+
       - name: Install environment
         run: |
           python -m venv ./venv
@@ -32,6 +37,11 @@ jobs:
         run: |
           New-Item -ItemType file resources\final
 
+      - name: npm ci
+        run: |
+          cd client
+          npm ci
+
       - name: mypy game
         run: |
           ./venv/scripts/activate