Inherit secrets to fix CODECOV_TOKEN not present in sub actions

[sl0thentr0py]

without this, CODECOV_TOKEN is not present in the sub workflows and coverage uploading fails
https://github.com/getsentry/sentry-ruby/actions/runs/15042765819/job/42278160770#step:7:240

#skip-changelog

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 64.15%. Comparing base (db975df) to head (b482819).
Report is 45 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2628      +/-   ##
==========================================
+ Coverage   64.11%   64.15%   +0.03%     
==========================================
  Files         123      127       +4     
  Lines        4724     4918     +194     
==========================================
+ Hits         3029     3155     +126     
- Misses       1695     1763      +68     

Components	Coverage Δ
sentry-ruby	59.78% <53.44%> (-4.29%)	⬇️
sentry-rails	60.26% <68.57%> (-5.82%)	⬇️
sentry-sidekiq	96.57% <94.73%> (-0.59%)	⬇️
sentry-resque	94.44% <100.00%> (+51.74%)	⬆️
sentry-delayed_job	95.65% <ø> (+63.05%)	⬆️
sentry-opentelemetry	99.31% <ø> (+58.25%)	⬆️

see 37 files with indirect coverage changes

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