Addresed FIPS compliance issues

[xlian-nextgen]

Due to FIPS(Federal information Processing Standards) newer versions of cfgrib encounter an error during runtime. This issue can be addressed by setting the usedforsecurity flag on hashlib md5 to false. Due to the primary use of this project being an API to support a grib engine for xarray this flag can be set to false.

The code change is based on an issue opened previously
#383

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 41.71%. Comparing base (93802ff) to head (b2c2c35).

Files with missing lines	Patch %	Lines
cfgrib/messages.py	0.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #440      +/-   ##
==========================================
- Coverage   41.78%   41.71%   -0.08%     
==========================================
  Files          26       26              
  Lines        2228     2232       +4     
  Branches      195      195              
==========================================
  Hits          931      931              
- Misses       1297     1301       +4     

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[iainrussell]

Hi @xlian-nextgen, many thanks for this contribution - I will merge it, but first can you add a comment with our contributors' agreement text? https://github.com/ecmwf/.github/blob/main/.github/PULL_REQUEST_TEMPLATE.md

[barronh]

@xlian-nextgen, thanks indeed! With the end-of-life on python3.9, this is starting to pop up in production environments. We have Dockers that fail when they update to newer python.

[xlian-nextgen]

Description

Contributor Declaration

By opening this pull request, I affirm the following:

• All authors agree to the Contributor License Agreement.
• The code follows the project's coding standards.
• I have performed self-review and added comments where needed.
• I have added or updated tests to verify that my changes are effective and functional.
• I have run all existing tests and confirmed they pass.

[xlian-nextgen]

Thank you for the review, I have added a comment with the contributors' agreement text. Let me know if you need anything else.