fix(spans): Add group_raw to HexIntColumnProcessor

[shruthilayaj]

Add group_raw to the HexIntColumnProcessor because
right now we return the raw int and we'd like to return
the hash instead as we do with group

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: -2.23 ⚠️

Comparison is base (e670cda) 92.76% compared to head (f92d172) 90.54%.

❗ Current head f92d172 differs from pull request most recent head 7667044. Consider uploading reports for the commit 7667044 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4459      +/-   ##
==========================================
- Coverage   92.76%   90.54%   -2.23%     
==========================================
  Files         768      806      +38     
  Lines       38272    39768    +1496     
  Branches        0      258     +258     
==========================================
+ Hits        35504    36007     +503     
- Misses       2768     3727     +959     
- Partials        0       34      +34     

Impacted Files	Coverage Δ
tests/test_spans_api.py	100.00% <100.00%> (ø)

... and 39 files with indirect coverage changes

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