chore(dev): added no-floating-promises rule and projectService: true to eslint config (#12440)

Author: KostyaTretyak

eslint.config.mjs

@@ -40,6 +40,7 @@ export default tsEslint.config(
     languageOptions: {
       parser: tsEslint.parser,
       parserOptions: {
+        projectService: true,
         project: ["./packages/utils/tsconfig.eslint.json"],
       },
       globals: {
@@ -55,6 +56,7 @@ export default tsEslint.config(
     rules: {
       "prefer-const": ["error", { destructuring: "all" }],
       "no-empty": ["error", { allowEmptyCatch: true }],
+      "@typescript-eslint/no-floating-promises": "error",
       "@typescript-eslint/no-explicit-any": "warn",
       "@typescript-eslint/ban-ts-comment": "warn",
       "@typescript-eslint/no-empty-object-type": [

packages/adapter-typeorm/src/utils.ts

@@ -98,7 +98,7 @@ export async function updateConnectionEntities(
   dataSource.entityMetadatas = entities
 
   // @ts-expect-error
-  dataSource.buildMetadatas()
+  await dataSource.buildMetadatas()
 
   if (dataSource.options.synchronize !== false) {
     console.warn(