Update test environments

Author: atjn

.github/workflows/test.yml

@@ -9,12 +9,12 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: [16.x]
+        node-version: [18.x]
         os: [ubuntu-latest, windows-latest, macOS-latest]
         include:
           - node-version: 14.13.0
             os: ubuntu-latest
-          - node-version: 17.x
+          - node-version: 16.x
             os: ubuntu-latest
 
     runs-on: ${{ matrix.os }}