feat(segy): add update_segy_file_headers

[BrianMichell]

Ingest may skip text/binary file headers. Export needs them. Write attrs only so traces stay untouched. Also provide a helper function/example for how to update the text header and binary header in place.

[codecov]

Codecov Report

❌ Patch coverage is 94.44444% with 14 lines in your changes missing coverage. Please review.
✅ Project coverage is 93.01%. Comparing base (c3ba558) to head (1ce06dd).
⚠️ Report is 250 commits behind head on main.

Files with missing lines	Patch %	Lines
src/mdio/segy/headers.py	90.07%	8 Missing and 6 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #863      +/-   ##
==========================================
+ Coverage   85.30%   93.01%   +7.70%     
==========================================
  Files          46      147     +101     
  Lines        2219     8550    +6331     
  Branches      306      488     +182     
==========================================
+ Hits         1893     7953    +6060     
- Misses        281      517     +236     
- Partials       45       80      +35     

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

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.