Force using old fmt in nvbench.

[vyasr]

Description

This is a port of #12064 to 22.12 to unblock CI because forward mergers are currently disabled.

Checklist

• I am familiar with the Contributing Guidelines.
• New or existing tests cover these changes.
• The documentation is up to date with these changes.

[codecov]

Codecov Report

Base: 87.47% // Head: 88.09% // Increases project coverage by +0.61% 🎉

Coverage data is based on head (34dd028) compared to base (f817d96).
Patch has no changes to coverable lines.

❗ Current head 34dd028 differs from pull request most recent head 5078370. Consider uploading reports for the commit 5078370 to get more accurate results

Additional details and impacted files

@@               Coverage Diff                @@
##           branch-22.12   #12067      +/-   ##
================================================
+ Coverage         87.47%   88.09%   +0.61%     
================================================
  Files               133      135       +2     
  Lines             21826    21997     +171     
================================================
+ Hits              19093    19378     +285     
+ Misses             2733     2619     -114     

Impacted Files	Coverage Δ
python/cudf/cudf/io/text.py	91.66% <0.00%> (-8.34%)	⬇️
python/cudf/cudf/core/_base_index.py	81.28% <0.00%> (-4.27%)	⬇️
python/cudf/cudf/io/json.py	92.06% <0.00%> (-2.68%)	⬇️
python/cudf/cudf/utils/utils.py	89.91% <0.00%> (-0.69%)	⬇️
python/dask_cudf/dask_cudf/core.py	73.72% <0.00%> (-0.41%)	⬇️
python/cudf/cudf/io/parquet.py	90.45% <0.00%> (-0.39%)	⬇️
python/dask_cudf/dask_cudf/backends.py	84.90% <0.00%> (-0.37%)	⬇️
python/cudf/cudf/core/dataframe.py	93.63% <0.00%> (-0.10%)	⬇️
python/cudf/cudf/core/column/datetime.py	89.62% <0.00%> (-0.09%)	⬇️
python/cudf/cudf/io/orc.py	92.94% <0.00%> (-0.09%)	⬇️
... and 33 more

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[robertmaynard]

@gpucibot merge