ci(workflow): update github action default token

[Sarthak-instill]

Because

• we need to update github action default token and remove docker hub login.

This commit

• update github action default token

[linear]

INS-2412 For public repo's PR GA workflow, we don’t need to log in to our Docker Hub.

pinglin said:

engineering For our public repos’ pull request GA workflow, we don’t need to log in to our Docker Hub. The GA secret can’t be exposed to a forked repo anyway. Also, for Codecov GA workflow, we will need to use the GitHub default token here so the pull request from a forked repo branch can also trigger the Codecov GA workflow. sarthak.gupta Can you help update the logic for all repos. Thanks.

<https://github.com/instill-ai/model-backend/blob/main/.github/workflows/coverage.yml | coverage.yml>

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (2bd5008) 0.00% compared to head (7e41a80) 0.00%.

Additional details and impacted files

@@          Coverage Diff          @@
##            main    #283   +/-   ##
=====================================
  Coverage   0.00%   0.00%           
=====================================
  Files          7       7           
  Lines       2131    2131           
=====================================
  Misses      2131    2131           

Flag	Coverage Δ
unittests	0.00% <ø> (ø)

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