Update ci/local/build.sh default $DOCKER_IMAGE

[codereport]

DOCKER_IMAGE is out of date since #7953 was merged. This fixes that.

[ajschmidt8]

rerun tests

[codecov]

Codecov Report

Merging #8013 (05d4ac3) into branch-0.20 (51336df) will increase coverage by 0.03%.
The diff coverage is 88.46%.

❗ Current head 05d4ac3 differs from pull request most recent head 16ac669. Consider uploading reports for the commit 16ac669 to get more accurate results

@@               Coverage Diff               @@
##           branch-0.20    #8013      +/-   ##
===============================================
+ Coverage        82.88%   82.92%   +0.03%     
===============================================
  Files              103      103              
  Lines            17668    17662       -6     
===============================================
+ Hits             14645    14646       +1     
+ Misses            3023     3016       -7     

Impacted Files	Coverage Δ
python/cudf/cudf/core/column/__init__.py	100.00% <ø> (ø)
python/cudf/cudf/io/orc.py	86.89% <ø> (ø)
python/cudf/cudf/utils/cudautils.py	57.75% <25.00%> (ø)
python/cudf/cudf/core/column/column.py	88.64% <71.42%> (ø)
python/cudf/cudf/core/column/numerical.py	94.43% <72.72%> (ø)
python/dask_cudf/dask_cudf/backends.py	89.51% <80.00%> (-0.08%)	⬇️
python/cudf/cudf/core/dataframe.py	90.87% <83.33%> (+0.01%)	⬆️
python/cudf/cudf/utils/utils.py	89.53% <91.66%> (+0.02%)	⬆️
python/cudf/cudf/core/column/datetime.py	89.91% <100.00%> (ø)
python/cudf/cudf/core/column/timedelta.py	88.66% <100.00%> (ø)
... and 17 more

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[ajschmidt8]

@gpucibot merge