Build Tools: Don't use git for package installs.

While NPM supports installing packages from git locations, this requires `git` to be in the path, which won't necessarily be true, particularly on Windows.

We can download the release versions for these packages, instead.

Fixes #47916.



git-svn-id: https://develop.svn.wordpress.org/trunk@45875 602fd350-edb4-49c9-b593-d223f7449a82

package.json

@@ -106,10 +106,10 @@
 		"element-closest": "^2.0.2",
 		"formdata-polyfill": "3.0.13",
 		"imagesloaded": "3.2.0",
-		"jquery-color": "github:jquery/jquery-color#2.1.1",
+		"jquery-color": "https://github.com/jquery/jquery-color/archive/2.1.1.tar.gz",
 		"jquery-form": "4.2.1",
 		"jquery-hoverintent": "1.8.3",
-		"jquery-ui": "github:jquery/jquery-ui#1.11.4",
+		"jquery-ui": "https://github.com/jquery/jquery-ui/archive/1.11.4.tar.gz",
 		"lodash": "4.17.15",
 		"masonry-layout": "3.3.2",
 		"moment": "2.22.2",