Integrate Asset Multibase-Multihash checksums

[Nazim-crim]

Resolves

• closes https://crim-ca.atlassian.net/browse/NRCAN06-148

Add

• Add support for multibase-encoded multihash file digests for resource integrity verification following W3C VC Data Integrity specification.
  Job outputs now include digestMultibase for local files, with additional file:checksum and file:byte_order metadata for
  STAC collection items. (resolves #898 <https://github.com/crim-ca/weaver/issues/898>_)

[codecov]

Codecov Report

❌ Patch coverage is 90.47619% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 88.10%. Comparing base (b2e7a91) to head (e316c48).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
weaver/utils.py	90.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #907   +/-   ##
=======================================
  Coverage   88.10%   88.10%           
=======================================
  Files          82       82           
  Lines       19691    19712   +21     
  Branches     2556     2560    +4     
=======================================
+ Hits        17349    17368   +19     
- Misses       1683     1684    +1     
- Partials      659      660    +1     

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