Update Node versions with which to test.

.github/workflows/build.yml

@@ -25,7 +25,7 @@ jobs:
     strategy:
       # Create a matrix of Node versions to test against (in parallel)
       matrix:
-        node-version: [14.x, 16.x]
+        node-version: [16.x, 18.x]
       # Do NOT exit immediately if one matrix job fails
       fail-fast: false
     # These are the actual CI steps to perform per job