chore: upgrades nodejs dependency to 14.21.1

Author: jeffsmale90

.travis.yml

@@ -1,7 +1,6 @@
 language: node_js
 node_js:
-# Use 12.13.1 because that is what Electron needs
-- "12.13.1"
+- "14.21.1"
 matrix:
   include:
   - os: osx

README.md

@@ -22,7 +22,7 @@ Please open issues and pull requests for new features, questions, and bug fixes.
 
 Requirements:
 
-- `node v12.13.1`
+- `node v14.21.1`
 
 To get started:
 

appveyor.yml

@@ -22,7 +22,7 @@ environment:
   GH_TOKEN:
     secure: S+Bnfbb+uco7s2X3jqmfP3vwxLIIZTmNmT0f8y982PaiUQB1AW8YNN7Acpi0JQOi
   matrix:
-    - nodejs_version: 12.13.1
+    - nodejs_version: 14.21.1
 
 install:
   - ps: $env:package_version = (Get-Content -Raw -Path package.json | ConvertFrom-Json).version