Deprecate PBR build dependency

[SeanBryan51]

PBR is removed from the build dependencies so that we can use versioneer to solve #129. This change removes the additional options provided by PBR in setup.cfg or replaces these options with the default options that come with setuptools.

Fixes #227

[codecov[bot]]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (db6b941) 82.34% compared to head (3304b9e) 82.34%. Report is 1 commits behind head on main.

Files	Patch %	Lines
setup.py	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #228 +/- ## ======================================= Coverage 82.34% 82.34% ======================================= Files 28 28 Lines 1410 1410 ======================================= Hits 1161 1161 Misses 249 249 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[SeanBryan51]

Commands tested

• Test conda installation:

  conda build -c conda-forge .
  conda install -c conda-forge --use-local benchcab
  /bin/bash benchcab/data/test/integration.sh

• Test pip install

  pip install --user .
  /bin/bash benchcab/data/test/integration.sh

[bschroeter]

Commands tested

• Test conda installation:

conda build -c conda-forge .
conda install -c conda-forge --use-local benchcab
/bin/bash benchcab/data/test/integration.sh

• Test pip install

pip install --user .
/bin/bash benchcab/data/test/integration.sh

I take it these passed without failure?

[SeanBryan51]

@bschroeter yes commands ran successfully.