[cherry-pick][release-1.12]Add go clean in Dockerfile and action.

[blackpiglet]

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Please add a summary of your change

This PR is used to resolve the push Github action's failure. The failure is caused by no space left on the disk.
This PR adds go clean after the local build and the docker image build.

Does your change fix a particular issue?

Fixes #(issue)

Please indicate you've done the following:

• Accepted the DCO. Commits without the DCO will delay acceptance.
• Created a changelog file or added /kind changelog-not-required as a comment on this pull request.
• Updated the corresponding documentation in site/content/docs/main.

[codecov]

Codecov Report

Merging #6896 (232d186) into release-1.12 (2cd15f1) will decrease coverage by 0.04%.
The diff coverage is n/a.

@@               Coverage Diff                @@
##           release-1.12    #6896      +/-   ##
================================================
- Coverage         60.47%   60.44%   -0.04%     
================================================
  Files               244      244              
  Lines             26074    26074              
================================================
- Hits              15768    15760       -8     
- Misses             9199     9206       +7     
- Partials           1107     1108       +1     

see 1 file with indirect coverage changes