Revert "Updated node to 12 for github actions."

This reverts commit 1696e09

Author: MrCoder

.github/workflows/deploy-prod.yml

@@ -14,7 +14,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [12.x]
+        node-version: [10.x]
 
     steps:
     - uses: actions/checkout@v2

.github/workflows/deploy-staging.yml

@@ -12,7 +12,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [12.x]
+        node-version: [10.x]
 
     steps:
     - uses: actions/checkout@v2