Update specificationRepositoryConfiguration.json (only for test) (#3644)

* Update specificationRepositoryConfiguration.json

* Remove Java, TypeScript, and Go configurations

* Add TypeSpec configurations for Java, TS, and Go

Author: msyyc

specificationRepositoryConfiguration.json

@@ -23,7 +23,8 @@
     },
     "azure-sdk-for-python": {
       "integrationRepository": "azure-sdk/azure-sdk-for-python",
-      "mainRepository": "Azure/azure-sdk-for-python"
+      "mainRepository": "Azure/azure-sdk-for-python",
+      "mainBranch": "fix-pipeline-2025-04-09-2"
     },
     "azure-powershell": {
       "integrationRepository": "azure-sdk/azure-powershell",