Speed up formatter workflow.
diff --git a/.github/workflows/formatting.yml b/.github/workflows/formatting.yml
index 0e357ec..1313995 100644
--- a/.github/workflows/formatting.yml
+++ b/.github/workflows/formatting.yml
@@ -33,6 +33,8 @@
           fetch-depth: 0
 
       # Setup for Prettier
+      # We don't need to do "npm ci" because run-formatters.sh uses "npx prettier"
+      # and this is speedier than installing everything.
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
@@ -40,10 +42,6 @@
           cache: "npm"
           cache-dependency-path: webui/package-lock.json
 
-      - name: Install dependencies
-        working-directory: ./webui
-        run: npm ci
-
       - name: Install gofumpt v0.8.0
         run: |
           curl -L https://github.com/mvdan/gofumpt/releases/download/v0.8.0/gofumpt_v0.8.0_linux_amd64 -o /tmp/gofumpt