Removing 8.x and 10.x node version in github actions

Author: manu4543

.github/workflows/nodejs.yml

@@ -9,7 +9,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [8.x, 10.x, 12.x]
+        node-version: [12.x]
 
     steps:
     - uses: actions/checkout@v1

.github/workflows/npmpublish.yml

@@ -10,7 +10,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [8.x, 10.x, 12.x]
+        node-version: [12.x]
 
     steps:
       - uses: actions/checkout@v1