[BUILD] 'uint8_t' not declared in this scope with gcc 13.2.1

[Thomas-Barbier-1A]

Changes

Added missing header file in hex.h, required to declare uint8_t

For significant contributions please make sure you have completed the following items:

• CHANGELOG.md updated for non-trivial changes
• Unit tests have been added
• Changes in public API reviewed

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: Thomas-Barbier-1A (62bd89c)
• ✅ login: ThomsonTan / name: Tom Tan (3c220c9)

[owent]

LGTM once the CLA is signed

[codecov]

Codecov Report

Merging #2423 (62bd89c) into main (abad83d) will not change coverage.
The diff coverage is n/a.

❗ Current head 62bd89c differs from pull request most recent head 3c220c9. Consider uploading reports for the commit 3c220c9 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2423   +/-   ##
=======================================
  Coverage   87.06%   87.06%           
=======================================
  Files         199      199           
  Lines        6079     6079           
=======================================
  Hits         5292     5292           
  Misses        787      787           

Files	Coverage Δ
...clude/opentelemetry/trace/propagation/detail/hex.h	100.00% <ø> (ø)

... and 1 file with indirect coverage changes

[Thomas-Barbier-1A]

Thank you very much! I should be able to get the CLA signed by Monday: There is already an agreement in my company but I need to be added to a list of contributors by someone who will be back on Monday.

[ThomsonTan]

Thanks for the fix. Please also fix the format of include order.

[Thomas-Barbier-1A]

Sorry for the delay, it took me a bit more time to get the CLA is signed. But it is now signed :-)