Hello @Tej ,
Welcome to the MS Q&A platform.
Please correct me if my understanding is wrong. You want to know how to deploy SQL objects(SPs) to an existing Serverless SQL pools in UAT and test environments through Azure DevOps.
If this is your requirement, the below thread explains the deployment of SQL scripts on Serverless SQL pools.
Or if you want to deploy/migrate the following SQL Objects- Database(serverless SQL pools), Database Master Key Encryption, Database Scoped Credential, Schema, External Data Sources, External File Formats, External Tables, Views, and Stored Procedures, please follow the below thread. The Release Pipeline contains the Azure Synapse Workspace Deployment task which is followed by a PowerShell task responsible to deploy the Serverless SQL Pools. The PowerShell script is attached to the answer.
Please let us know if you have any further questions.