fix: Update type on BroccoliTreeImporter.import().

Author: Timothy Lindvall

packages/@css-blocks/ember/src/BroccoliTreeImporter.ts

@@ -1,4 +1,4 @@
-import { Configuration, ImportedFile, Importer, Syntax, syntaxFromExtension } from "@css-blocks/core";
+import { Configuration, ImportedCompiledCssFile, ImportedFile, Importer, Syntax, syntaxFromExtension } from "@css-blocks/core";
 import type { FS as MergedFileSystem } from "fs-merger";
 import * as path from "path";
 
@@ -48,7 +48,7 @@ export class BroccoliTreeImporter implements Importer {
     }
   }
 
-  async import(identifier: string, config: Readonly<Configuration>): Promise<ImportedFile> {
+  async import(identifier: string, config: Readonly<Configuration>): Promise<ImportedFile | ImportedCompiledCssFile> {
     if (isBroccoliTreeIdentifier(identifier)) {
       let relativePath = identToPath(identifier);
       let contents = this.input.readFileSync(relativePath, "utf8");

yarn.lock

@@ -13721,7 +13721,7 @@ miller-rabin@^4.0.0:
     bn.js "^4.0.0"
     brorand "^1.0.1"
 
-"mime-db@>= 1.43.0 < 2":
+[email protected], "mime-db@>= 1.43.0 < 2":
   version "1.43.0"
   resolved "https://registry.npmjs.org/mime-db/-/mime-db-1.43.0.tgz#0a12e0502650e473d735535050e7c8f4eb4fae58"
   integrity sha512-+5dsGEEovYbT8UY9yD7eE4XTc4UwJ1jBYlgaQQF38ENsKR3wj/8q8RFZrF9WIZpB2V1ArTVFUva8sAul1NzRzQ==