[prakash100198]

Description

Fixes https://github.com/devtron-labs/sprint-tasks/issues/2983

Checklist:

• The title of the PR states what changed and the related issues number (used for the release note).
• Does this PR requires documentation updates?
• I've updated documentation as required by this PR.
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• I have tested it for all user roles.
• I have added all the required unit/api test cases.

Does this PR introduce a user-facing change?

Summary by Bito

• Added a method `ClearDockerBuildArgs` to `CiBuildConfigBean` to explicitly remove Docker build arguments from CI pipeline overrides.
• Updated `CiTemplateReadService` to invoke `ClearDockerBuildArgs` when extracting build configuration, preventing stale build arguments from being served or used in builds.
• Added comprehensive unit tests for `CiBuildConfigBean` and `CiTemplateReadService` to verify the clearing logic and ensure no other build configuration fields are affected.

[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud