build: no longer build,lint,test node 10 since I upgraded some dependencies

Author: mlaursen

.github/workflows/build_lint_test.yml

@@ -16,7 +16,7 @@ jobs:
     if: "!contains(github.event.head_commit.message, 'ci skip')"
     strategy:
       matrix:
-        node-version: [10.x, 12.x]
+        node-version: [12.x]
 
     steps:
     - uses: actions/checkout@v2