CI: pass CODECOV token in release->test workflow call

[anilbey]

Issue

The coverage was only getting updated for the PR branches not main.

Reason

For security reasons when we call a workflow from the other we need to specify the env vars.

To upload the coverage of the main we do 2 workflow calls.

1. release.yml -> test.yml
2. test.yml -> codecov's workflow

Solution

Previously in 2, the secret is passed. In 1 it was not. Now both of them pass.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.96%. Comparing base (d7a5240) to head (e898ec3).
Report is 9 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #141      +/-   ##
==========================================
+ Coverage   85.30%   88.96%   +3.65%     
==========================================
  Files          80       84       +4     
  Lines        5404     5183     -221     
==========================================
+ Hits         4610     4611       +1     
+ Misses        794      572     -222     

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