build(github): update node version on github workflow files

Author: jeanettephung

.github/workflows/build.yaml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [10.13]
+        node-version: [14.15.1]
 
     steps:
       - name: Checkout Repository

.github/workflows/deploy-to-cdn.yaml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [10.13]
+        node-version: [14.15.1]
 
     steps:
       - name: Checkout Repository

.github/workflows/publish-to-npm.yaml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12]
+        node-version: [14.15.1]
 
     steps:
       - uses: actions/checkout@v1

.github/workflows/test.yaml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [10.13]
+        node-version: [14.15.1]
 
     steps:
       - name: Checkout Repository