CI: pin GitHub Action version

Author: azu

.github/workflows/test.yml

@@ -11,13 +11,13 @@ jobs:
         node-version: [ 22, 24 ]
     steps:
       - name: checkout
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           persist-credentials: false
       - name: Install pnpm
         uses: pnpm/action-setup@41ff72655975bd51cab0327fa583b6e92b6d3061 # v4.2.0
       - name: setup Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
+        uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6.1.0
         with:
           cache: "pnpm"
           node-version: ${{ matrix.node-version }}