fix: update CI workflow to use Yarn for dependency management

Author: maxgfr

.github/workflows/ci.yml

@@ -19,19 +19,24 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
-          cache: 'npm'
+          cache: 'pnpm'
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 10
 
       - name: Install dependencies
-        run: npm ci
+        run: pnpm install --frozen-lockfile
 
       - name: Lint
-        run: npm run lint
+        run: pnpm run lint
 
       - name: Format check
-        run: npm run format:check
+        run: pnpm run format:check
 
       - name: TypeScript check
-        run: npx tsc --noEmit
+        run: pnpm exec tsc --noEmit
 
       - name: Build
-        run: npm run build
+        run: pnpm run build

.github/workflows/publish.yml

@@ -22,14 +22,17 @@ jobs:
         uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version: '24'
           registry-url: 'https://registry.npmjs.org/'
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 10
       - name: Install
-        run: yarn install --frozen-lockfile
+        run: pnpm install --frozen-lockfile
       - name: Build
-        run: yarn build
+        run: pnpm build
       - name: Release
-        run: yarn release
+        run: pnpm release
       - name: Configure npm for OIDC
         run: npm install -g npm@11.6.1
       - name: npm version