build: update GH Action versions (#264)

- test on node 16, 18, 20
- update actions/* version numbers
- publish from node 20

.github/workflows/node.js.yml

@@ -14,22 +14,22 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [14.x, 16.x, 18.x]
+        node-version: [16.x, 18.x, 20.x]
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v2
+      uses: actions/setup-node@v4
       with:
         node-version: ${{ matrix.node-version }}
     - name: Cache pnpm modules
-      uses: actions/cache@v2
+      uses: actions/cache@v4
       with:
         path: ~/.pnpm-store
         key: ${{ runner.os }}-${{ hashFiles('**/pnpm-lock.yaml') }}
         restore-keys: |
           ${{ runner.os }}-
-    - uses: pnpm/action-setup@v2.2.4
+    - uses: pnpm/action-setup@v4
       with:
         version: ^7
         run_install: true

.github/workflows/npm-publish.yml

@@ -15,21 +15,21 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [16.x]
+        node-version: [20.x]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
       - name: Cache pnpm modules
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ~/.pnpm-store
           key: ${{ runner.os }}-${{ hashFiles('**/pnpm-lock.yaml') }}
           restore-keys: |
             ${{ runner.os }}-
-      - uses: pnpm/action-setup@v2.0.1
+      - uses: pnpm/action-setup@v4
         with:
           version: 6.0.2
           run_install: true