feat: Add UI regex validation

[arya-girish-k]

Description

Add UI regex valiadation in ibm_catalog.json.

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Release notes content

This PR enables input validation in the UI for several string variables by leveraging the value_constraints array defined in the catalog. These constraints will be used by the UI to validate user input at runtime. The changed variables include:
prefix, existing_mq_capacity_crn,existing_mq_deployment_crn.

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[arya-girish-k]

/run pipeline

[arya-girish-k]

/run pipeline

[arya-girish-k]

/run pipeline

[arya-girish-k]

Tested the variables against different patterns, including null values, incorrect inputs, and correct inputs. Corresponding screenshots are attached below.

• existing_mq_capacity_crn

• queue_manager_name

• existing_mq_deployment_crn

• existing_secrets_manager_crn