Fix StaticCredentialsProvider background refresh

- Add changeset for @ydbjs/auth patch
- Await and swallow errors from #refreshToken to avoid synchronous
  disposal of the linked signal which aborted background refreshes

Signed-off-by: Vladislav Polyakov <polRk@ydb.tech>

Author: polRk

.changeset/fix-static-credentials-background-refresh.md

@@ -0,0 +1,7 @@
+---
+'@ydbjs/auth': patch
+---
+
+Fix `StaticCredentialsProvider` background token refresh being immediately cancelled
+
+`#refreshTokenInBackground` previously used `void this.#refreshToken(linkedSignal.signal)` — fire-and-forget, so `using linkedSignal` stayed alive for the duration of the refresh. After the fix for the memory leak the call became `await this.#refreshToken(...)`, which caused `[Symbol.dispose]` to run synchronously at the end of the `async` function frame — before the refresh had a chance to complete — aborting the underlying `AbortController` and cancelling every background refresh immediately.

packages/auth/src/static.ts

@@ -152,7 +152,7 @@ export class StaticCredentialsProvider extends CredentialsProvider {
 		debug.log('starting background token refresh')
 		using linkedSignal = linkSignals(signal, AbortSignal.timeout(BACKGROUND_REFRESH_TIMEOUT_MS))
 
-		void this.#refreshToken(linkedSignal.signal)
+		await this.#refreshToken(linkedSignal.signal).catch(() => {})
 	}
 
 	/**

packages/auth/vitest.config.ts

@@ -2,8 +2,29 @@ import { defineProject } from 'vitest/config'
 
 export default defineProject({
 	test: {
-		name: 'auth',
-		include: ['src/**/*.test.ts'],
-		environment: 'node',
+		projects: [
+			{
+				test: {
+					name: {
+						label: 'uni',
+						color: 'yellow',
+					},
+					include: ['src/**/*.test.ts'],
+					environment: 'node',
+				},
+			},
+			{
+				test: {
+					name: {
+						label: 'int',
+						color: 'blue',
+					},
+					include: ['tests/**/*.test.ts'],
+					environment: 'node',
+					testTimeout: 30000,
+					globalSetup: '../../vitest.setup.ydb.ts',
+				},
+			},
+		],
 	},
 })