Trim source paths for release binaries

[justsmth]

Issues:

• Addresses aws-lc-sys leaks source paths bypassing rustc's trim-paths #470

Description of changes:

• Strip the full source paths from "release" artifacts.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license and the ISC license.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.69%. Comparing base (c358484) to head (76c2365).
Report is 51 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #478      +/-   ##
==========================================
- Coverage   95.80%   92.69%   -3.11%     
==========================================
  Files          61       63       +2     
  Lines        8143     8456     +313     
  Branches        0     8456    +8456     
==========================================
+ Hits         7801     7838      +37     
- Misses        342      361      +19     
- Partials        0      257     +257     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.