docs: update usage example

.github/workflows/diff-dependencies.yml

@@ -11,28 +11,15 @@ jobs:
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           ref: main
-      - name: Get main commit SHA
-        id: main-sha
-        run: echo "sha=$(git rev-parse HEAD)" >> $GITHUB_OUTPUT
-      - name: Check cache for main build
-        id: cache-main
-        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
-        with:
-          path: '*.tgz'
-          key: main-build-${{ steps.main-sha.outputs.sha }}
       - name: Use Node
-        if: steps.cache-main.outputs.cache-hit != 'true'
         uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5.0.0
         with:
           node-version: 24.x
       - name: Install Dependencies
-        if: steps.cache-main.outputs.cache-hit != 'true'
         run: npm ci --ignore-scripts
       - name: Build
-        if: steps.cache-main.outputs.cache-hit != 'true'
         run: npm run build
       - name: Pack
-        if: steps.cache-main.outputs.cache-hit != 'true'
         run: npm pack
       - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:

README.md

@@ -19,7 +19,6 @@ name: Dependency Diff
 
 on:
   pull_request:
-    types: [opened]
 
 jobs:
   diff_dependencies: