@W-21933885: [MSDK Android] App Attestation Implementation (Fix additionalOauthKeys Stub Type In TokenMigrationActivityTest)

Author: JohnsonEricAtSalesforce

libs/test/SalesforceSDKTest/src/com/salesforce/androidsdk/ui/TokenMigrationActivityTest.kt

@@ -128,7 +128,7 @@ class TokenMigrationActivityTest {
         every { SalesforceSDKManager.getInstance().userAccountManager } returns mockUserAccountManager
 
         // Mock additionalOauthKeys (called during user account building in lifecycle)
-        every { SalesforceSDKManager.getInstance().additionalOauthKeys } returns emptyList()
+        every { SalesforceSDKManager.getInstance().additionalOauthKeys } returns emptyList<String>()
 
         // CRITICAL: Mock appAttestationClient to return null to prevent blocking network calls
         // in LoginViewModel.getAuthorizationUrl() and OAuth2.makeTokenEndpointRequest()