Combine Dependabot PRs and raise CI Node to 22.20.0

.github/workflows/codeql-analysis.yml

@@ -38,7 +38,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL

.github/workflows/run-diffend.yml

@@ -12,10 +12,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up node
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v4
         with:
+          # Diffend's npm wrapper crashes ("s.warn is not a function") on the
+          # npm that ships with Node 22. This job only runs `npm install` for
+          # the supply-chain scan, so it stays on 18.13.0.
           node-version: '18.13.0'
       - name: Install Diffend (Mend)
         run: npm install -g https://my.diffend.io/releases/npm/stable.tgz

.github/workflows/run-license-check.yml

@@ -11,12 +11,12 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node: ["18.13.0"]
+        node: ["22.20.0"]
     steps:
       - name: Check out code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Set up node
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node }}
       - name: Install dependencies

.github/workflows/run-lint.yml

@@ -12,11 +12,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up node
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v4
         with:
-          node-version: '18.13.0'
+          node-version: '22.20.0'
       - name: Install dependencies
         run: npm install
       - name: Run lint

.github/workflows/spell-check.yml

@@ -13,11 +13,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up node
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v4
         with:
-          node-version: '18.13.0'
+          node-version: '22.20.0'
       - name: Spell check
         run: npx cspell@v8.19.4 "**/*.js"