Multiphonon dependency upgrade

[mpatrou]

Short description of the changes:

The code includes changes related to upgrading the package dependencies, e.g. Mantid and avoid pinning (==) to specific versions.

Long description of the changes:

More specifically, it includes:

• pyproject requirements updates
• environment updates, including using the neutrons histogram dev.
• github actions simplified with the recent tools available

Check list for the pull request

• I have read the [CONTRIBUTING]
• I have read the [CODE_OF_CONDUCT]
• I have added tests for my changes
• I have updated the documentation accordingly

Check list for the reviewer

• I have read the [CONTRIBUTING]
• I have verified the proposed changes
• best software practices
  • all internal functions have an underbar, as is python standard
  • clearly named variables (better to be verbose in variable names)
  • code comments explaining the intent of code blocks
• All the tests are passing
• The documentation is up to date
• code comments added when explaining intent

Manual test for the reviewer

Test with histogram and multiphonon tests in the new environment

References

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.03%. Comparing base (36e97d0) to head (08917dd).

Additional details and impacted files

@@            Coverage Diff             @@
##             next     #158      +/-   ##
==========================================
+ Coverage   88.79%   89.03%   +0.23%     
==========================================
  Files          23       23              
  Lines        1392     1395       +3     
==========================================
+ Hits         1236     1242       +6     
+ Misses        156      153       -3     

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[KyleQianliMa]

Tested in both environment and all tests in both histogram and multiphonon passes