ci: test and publish on node 22 (#99)

.github/workflows/main.yml

@@ -15,18 +15,18 @@ jobs:
       matrix:
         # Include all major maintenance + active LTS + current Node.js versions.
         # https://github.com/nodejs/Release#release-schedule
-        node: [18, 20]
+        node: [18, 20, 22]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Set up Node.js 20
+      - name: Set up Node.js 22
         uses: actions/setup-node@v3
         with:
           # Always build using the same Node.js version, to ensure consistent
           # results from scripts/iu-mappings.js.
           # This version should be the same as the one used in the
           # publish-on-tag workflow.
-          node-version: 20
+          node-version: 22
       - name: Install dependencies
         run: npm install
       - name: Build

.github/workflows/publish-on-tag.yml

@@ -11,13 +11,13 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Set up Node.js 20
+      - name: Set up Node.js 22
         uses: actions/setup-node@v3
         with:
           # Always build using the same Node.js version, to ensure consistent
           # results from scripts/iu-mappings.js.
           # This version should be the same as the one used in the main workflow.
-          node-version: 20
+          node-version: 22
       - name: Install dependencies
         run: npm install
       - name: Build