NPM Updates & NVM Version Lock

.nvmrc

@@ -1 +1 @@
-lts/*
+lts/erbium

package.json

@@ -28,9 +28,9 @@
 		"@floatwork/grunt-po2mo": "^0.3.0",
 		"@ndigitals/grunt-checkrepo": "^0.2.0",
 		"@wordpress/env": "^1.6.0",
-		"@wordpress/scripts": "^12.1.0",
-		"check-node-version": "4.0.3",
-		"grunt": "~1.0.4",
+		"@wordpress/scripts": "12.2.0",
+		"check-node-version": "^4.0.3",
+		"grunt": "1.3.0",
 		"grunt-checkbranch": "^1.0.4",
 		"grunt-checktextdomain": "^1.0.1",
 		"grunt-cli": "^1.3.2",
@@ -39,7 +39,7 @@
 		"grunt-gitinfo": "^0.1.9",
 		"grunt-shell": "^2.1.0",
 		"grunt-wp-i18n": "^1.0.3",
-		"grunt-wp-readme-to-markdown": "~2.0.0",
+		"grunt-wp-readme-to-markdown": "^2.0.0",
 		"load-grunt-tasks": "^3.5",
 		"node": "^12.18.3",
 		"npm": "^6.14.8",