Bump to 0.21.4

Author: worksofliam

package.json

@@ -12,7 +12,7 @@
 		"url": "https://github.com/halcyon-tech/vscode-rpgle"
 	},
 	"license": "MIT",
-	"version": "0.21.3",
+	"version": "0.21.4",
 	"engines": {
 		"vscode": "^1.70.0"
 	},