ci: pin actions versions with git hashes

Author: Linkid

.github/workflows/build.yml

@@ -12,10 +12,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout the repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
 
       - name: Setup Node.js
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e  # v6.4.0
       - name: Install web-ext
         run: npm install --global web-ext
       - name: Display web-ext version
@@ -25,7 +25,7 @@ jobs:
         run: web-ext build
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
         with:
           path: web-ext-artifacts/*.zip
           name: git-pr-ext-firefox

.github/workflows/lint.yml

@@ -1,14 +1,15 @@
 name: Lint
 on: [push]
+
 jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout the repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
 
       - name: Setup Node.js
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e  # v6.4.0
 
       # web-ext
       - name: Install web-ext