chore(workflow): modify node-version to lts/iron

Author: sabhas

.github/workflows/run-tests-windows.yml

@@ -12,7 +12,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [lts/*]
+        node-version: [lts/iron]
 
     steps:
       - uses: actions/checkout@v2

.github/workflows/run-tests.yml

@@ -12,7 +12,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [lts/*]
+        node-version: [lts/iron]
 
     steps:
       - uses: actions/checkout@v2