[WIP] Fix UNC path on Windows

Fixes #1152

Signed-off-by: David Thompson <davthomp@redhat.com>

Author: datho7561

org.eclipse.lemminx/src/main/java/org/eclipse/lemminx/uriresolver/CacheResourcesManager.java

@@ -309,6 +309,11 @@ public static Path getResourceCachePath(String resourceURI) throws IOException {
 	}
 
 	public static Path getResourceCachePath(URI uri) throws IOException {
+		// UNC path
+		if ("file".equals(uri.getScheme())) {
+			return Path.of(uri);
+		}
+
 		// Eliminate all path traversals
 		URI normalizedUri = uri.normalize();