Add CodeQL scanning and harden workflows

.github/workflows/codeql.yml

@@ -0,0 +1,46 @@
+name: CodeQL
+
+on:
+  push:
+    branches: ["master"]
+  pull_request:
+    branches: ["master"]
+  schedule:
+    - cron: "18 6 * * 2"
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: codeql-${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  analyze:
+    name: Analyze (${{ matrix.language }})
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    permissions:
+      contents: read
+      security-events: write
+    strategy:
+      fail-fast: false
+      matrix:
+        language: ["javascript-typescript", "actions"]
+    steps:
+      - name: Check out source
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@1fc58d04a4d4374f921bdac573c3811c240f9c26 # v4
+        with:
+          languages: ${{ matrix.language }}
+          build-mode: none
+
+      - name: Analyze source
+        uses: github/codeql-action/analyze@1fc58d04a4d4374f921bdac573c3811c240f9c26 # v4
+        with:
+          category: "/language:${{ matrix.language }}"

.github/workflows/test-react-packages.yml

@@ -6,6 +6,9 @@ on:
       - master
   pull_request:
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -23,7 +26,7 @@ jobs:
           key: meteor-cache
 
       - name: Setup Meteor
-        uses: meteorengineer/setup-meteor@v2
+        uses: meteorengineer/setup-meteor@ea0fcbe01845a4b8b0862301b46e761272378b93 # v2
         with:
           meteor-release: '3.1.2'