fix(build): fix image ENV as per image push script

[mittachaitu]

This PR fix the image env to call push script

Signed-off-by: mittachaitu sai.chaithanya@mayadata.io

What this PR does / why we need it: This PR fixes the image env to honor env present in push script and this is required to push images into image repositories.

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #

Special notes for your reviewer:

Checklist:

• [ ] Fixes #
• [ ] Labelled this PR & related issue with documentation tag
• [ ] PR messages has document related information
• [ ] Labelled this PR & related issue with breaking-changes tag
• [ ] PR messages has breaking changes related information
• [ ] Labelled this PR & related issue with requires-upgrade tag
• [ ] PR messages has upgrade related information
• [ ] Commit has unit tests
• [ ] Commit has integration tests