[engsys] upgrade eslint-config-prettier version to ^9.0.0 (Azure#26725)

The breaking change in v9 is related to how BOM is handled. It doesn't
affect our usage.

While validating the change I found some false-positive linter errors in
dev-tool and suppressed them.

Author: jeremymeng

common/config/rush/pnpm-lock.yaml

@@ -354,7 +354,7 @@ async function runMigrations(pending: Migration[], project: ProjectInfo): Promis
 async function onMigrationSuccess(
   project: ProjectInfo,
   migration: Migration,
-  quiet: boolean = false
+  quiet: boolean = false // eslint-disable-line @typescript-eslint/no-inferrable-types
 ): Promise<void> {
   await updateMigrationDate(project, migration);
 
@@ -370,7 +370,7 @@ async function onMigrationSuccess(
 async function onMigrationSkipped(
   project: ProjectInfo,
   migration: Migration,
-  quiet: boolean = false
+  quiet: boolean = false // eslint-disable-line @typescript-eslint/no-inferrable-types
 ): Promise<void> {
   await updateMigrationDate(project, migration);
 
@@ -447,7 +447,10 @@ function printMigrationSuspendedWarning(migration: Migration, status: MigrationS
  * @param project - the working project
  * @returns true on success, otherwise false
  */
-async function abortMigration(project: ProjectInfo, quiet: boolean = false): Promise<boolean> {
+async function abortMigration(
+  project: ProjectInfo,
+  quiet: boolean = false // eslint-disable-line @typescript-eslint/no-inferrable-types
+): Promise<boolean> {
   const suspendedMigration = await validateSuspendedState(project);
   if (!suspendedMigration) return false;
 

common/tools/dev-tool/src/commands/migrate.ts

@@ -37,8 +37,8 @@ declare global {
         require?: string;
         types?: string;
         [extraTypes: `types@${string}`]: string;
-      }
-    },
+      };
+    };
     typesVersions?: {
       [k: string]: {
         [k: string]: string[];

common/tools/dev-tool/src/util/resolveProject.ts

@@ -219,7 +219,8 @@ export async function isProxyToolActive(): Promise<boolean> {
     await axios.get(`http://localhost:${process.env.TEST_PROXY_HTTP_PORT ?? 5000}/info/available`);
 
     log.info(
-      `Proxy tool seems to be active at http://localhost:${process.env.TEST_PROXY_HTTP_PORT ?? 5000
+      `Proxy tool seems to be active at http://localhost:${
+        process.env.TEST_PROXY_HTTP_PORT ?? 5000
       }\n`
     );
     return true;

common/tools/dev-tool/src/util/testProxyUtils.ts

@@ -71,7 +71,7 @@
     "@typescript-eslint/typescript-estree": "~5.57.0",
     "@types/eslint": "~8.4.0",
     "@types/estree": "~1.0.0",
-    "eslint-config-prettier": "^8.0.0",
+    "eslint-config-prettier": "^9.0.0",
     "glob": "^9.0.0",
     "json-schema": "^0.4.0",
     "typescript": "~5.0.0",