Prepare upload scripts for Python 3.7 removal

[jjacobelli]

As we will remove Python 3.7, we need to update the Python version in the upload scripts

[codecov]

Codecov Report

Merging #10092 (898dff1) into branch-22.02 (967a333) will decrease coverage by 0.11%.
The diff coverage is n/a.

❗ Current head 898dff1 differs from pull request most recent head 78cd420. Consider uploading reports for the commit 78cd420 to get more accurate results

@@               Coverage Diff                @@
##           branch-22.02   #10092      +/-   ##
================================================
- Coverage         10.49%   10.37%   -0.12%     
================================================
  Files               119      119              
  Lines             20305    20625     +320     
================================================
+ Hits               2130     2139       +9     
- Misses            18175    18486     +311     

Impacted Files	Coverage Δ
python/custreamz/custreamz/kafka.py	29.16% <0.00%> (-0.63%)	⬇️
python/dask_cudf/dask_cudf/sorting.py	92.66% <0.00%> (-0.25%)	⬇️
python/dask_cudf/dask_cudf/core.py	70.85% <0.00%> (-0.17%)	⬇️
python/cudf/cudf/__init__.py	0.00% <0.00%> (ø)
python/cudf/cudf/api/types.py	0.00% <0.00%> (ø)
python/cudf/cudf/core/frame.py	0.00% <0.00%> (ø)
python/cudf/cudf/core/index.py	0.00% <0.00%> (ø)
python/cudf/cudf/io/parquet.py	0.00% <0.00%> (ø)
python/cudf/cudf/core/dtypes.py	0.00% <0.00%> (ø)
python/cudf/cudf/core/scalar.py	0.00% <0.00%> (ø)
... and 38 more

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[jjacobelli]

@gpucibot merge