revert: "ci: fix node 16 to 16.8" (#482)

This reverts commit 08e40fc.

Author: MichaelDeBoey

.github/workflows/pipeline.yml

@@ -51,7 +51,7 @@ jobs:
 
     strategy:
       matrix:
-        node: [10.12, 10, '12.0', 12, 14, '16.8']
+        node: [10.12, 10, '12.0', 12, 14, 16]
         eslint: [7.5, 7]
 
     steps: