Gcloud version change and update git cmds to push back helm changes for custom action for GCP

[mohitdhaundiyal-searce]

Pull Request Template

Description

• Latest version of gcloud was not working with binary attestation of images. Fixed this issue with gcloud version '455.0.0'.

• Updated the git commands to push back helm changes for custom action for GCP build pipeline.

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

• Tested from webflow apis repo: https://github.com/maticnetwork/polygon-webflow-apis/actions/runs/7408272299/job/20156145257

Checklist:

Before you submit your pull request, please make sure you have completed the following:

• I have followed the contributing guidelines.
• My code follows the style guidelines of this project and I have run lint to ensure the code style is valid
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

Screenshots (if appropriate):

Include any screenshots that will help explain your changes.

Additional context

Add any other context about the pull request here.