CJSX Syntax; drop compat for ST2 (#6327)

Update the "CJSX Syntax" record in `c.json` to formally drop support for Sublime Text 2.

Related related release here: https://github.com/Guidebook/sublime-cjsx/releases/tag/v2.0.0

repository/c.json

@@ -1083,7 +1083,7 @@
 			"labels": ["CJSX", "syntax"],
 			"releases": [
 				{
-					"sublime_text": "*",
+					"sublime_text": ">=3103",
 					"tags": true
 				}
 			]