build: update Node versions for test and release

Author: petermuessig

.github/workflows/main.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        version: [18, 20]
+        version: [20, 22]
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4

.github/workflows/release.yml

@@ -14,7 +14,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
-          node-version: 18
+          node-version: 20
           registry-url: https://registry.npmjs.org/
 
       - run: npm install