Cargo.toml: merge release-fast profile to release profile

[oech3]

panic=abort does not remove stack trace https://blog.rust-lang.org/2025/12/11/Rust-1.92.0/#emit-unwind-tables-even-when-cpanic-abort-is-enabled-on-linux .
Let profile simpler.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.27%. Comparing base (015dc1f) to head (4585084).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #873   +/-   ##
=======================================
  Coverage   92.27%   92.27%           
=======================================
  Files          35       35           
  Lines        7499     7499           
  Branches      390      390           
=======================================
  Hits         6920     6920           
  Misses        437      437           
  Partials      142      142           

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[codspeed]

Merging this PR will not alter performance

✅ 20 untouched benchmarks

---

_{Comparing oech3:patch-1 (4585084) with main (015dc1f)}

[github-actions]

Commit 4585084 has test result changes:

bfs testsuite:

Test results comparison:
  Current:   TOTAL: 316 / PASSED: 273 / FAILED: 37 / SKIPPED: 6
  Reference: TOTAL: 317 / PASSED: 274 / FAILED: 37 / SKIPPED: 6

Changes from main branch:
  TOTAL: -1
  PASSED: -1
  FAILED: +0

No result in this run (1) - hung, crashed, or renamed:
  ? posix/depth_error (was PASS)

[sylvestre]

this doesn't only drop release-fast, it enables panic=abort for release (and dist, bfs, gnu builds).
was it intended? if so, please update the title

[oech3]

updated