ci: make node v16 required (#18487)

.github/workflows/build.yml

@@ -29,7 +29,7 @@ env:
 
 jobs:
   test:
-    name: ${{ matrix.node-version == 14 && format('test ({0})', matrix.os) || format('test ({0}, node-{1})', matrix.os, matrix.node-version) }}
+    name: ${{ matrix.node-version == 16 && format('test ({0})', matrix.os) || format('test ({0}, node-{1})', matrix.os, matrix.node-version) }}
     runs-on: ${{ matrix.os }}
 
     # tests shouldn't need more time