cache npm packages in github actions

Author: niklasf

.github/workflows/check.yml

@@ -6,6 +6,8 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - uses: actions/setup-node@v5
+        with:
+          cache: npm
       - run: npm ci
       - run: npm test
       - run: cd examples && npm ci

.github/workflows/publish-docs.yml

@@ -19,6 +19,8 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - uses: actions/setup-node@v5
+        with:
+          cache: npm
       - run: npm ci
       - run: npm run doc
       - uses: actions/configure-pages@v5