#2724 Updated version number to be 3.0.1-dev.

[hiker]

This doesn't fully fix 2724. MY understanding is that we first use -dev, then wait for feedback from Iva if we can switch to the automated way using setuptools_scm (which caused problems on some UK systems I Believe).

So, this only adds -dev for now

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.88%. Comparing base (b60c53f) to head (1f3c485).
Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2818   +/-   ##
=======================================
  Coverage   99.88%   99.88%           
=======================================
  Files         357      357           
  Lines       49742    49742           
=======================================
  Hits        49686    49686           
  Misses         56       56           

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[hiker]

As discussed, update the version number to 3.0.1-dev (while we investigate if we can automate this). Note that both Sergi and I agreed that there is no need to call it 3.0.1-develop in order to be supported by spack, 'develop' is just the spack name that can be given to any branch.

[sergisiso]

@hiker This introduces the "-dev" change that we agreed and has passed all CI tests.

@hiker @arporter breaking convention I will merge without the changelog update as this seems a repo managing change (not functionality) and it will be reversed anyway for the next release. But let me know if you disagree as then I could add it later.