Update printer.rs (#4303)

Summary:
enable tsx on relay resolvers

Pull Request resolved: #4303

Reviewed By: josephsavona

Differential Revision: D45660661

Pulled By: captbaritone

fbshipit-source-id: 12d2d65eee340bda7d66cbd95a75cbde58defaeb

compiler/crates/relay-codegen/src/printer.rs

@@ -661,7 +661,7 @@ fn get_module_path(js_module_format: JsModuleFormat, key: StringKey) -> Cow<'sta
             let extension = path.extension();
 
             if let Some(extension) = extension {
-                if extension == "ts" || extension == "js" {
+                if extension == "ts" || extension == "tsx" || extension == "js" {
                     let path_without_extension = path.with_extension("");
 
                     let path_without_extension = path_without_extension