Addressing problem testing against python 3.10 on Travis (skip more annex versions)

[yarikoptic]

prompted by #6841 (comment) . Still don't know why it got 0+unknown version, let's see if repeats here

[codecov]

Codecov Report

Merging #6842 (d449c68) into maint (8c65776) will increase coverage by 0.95%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##            maint    #6842      +/-   ##
==========================================
+ Coverage   90.25%   91.21%   +0.95%     
==========================================
  Files         354      354              
  Lines       46065    46065              
==========================================
+ Hits        41577    42019     +442     
+ Misses       4488     4046     -442     

Impacted Files	Coverage Δ
datalad/local/tests/test_add_archive_content.py	99.62% <ø> (ø)
datalad/tests/utils.py	66.76% <0.00%> (+9.73%)	⬆️
datalad/tests/test_tests_utils.py	92.34% <0.00%> (+92.34%)	⬆️

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[yarikoptic]

ok, we still have one failing run on travis (https://app.travis-ci.com/github/datalad/datalad/jobs/576806839) where we see

$ git describe
0.17.1-7-g19f2b08c4

so tags are there! but then

$ sudo pip install --user .
WARNING: The directory '/home/travis/.cache/pip' or its parent directory is not owned or is not writable by the current user. The cache has been disabled. Check the permissions and owner of that directory. If executing pip with sudo, you should use sudo's -H flag.
Processing /home/travis/build/datalad/datalad
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Requirement already satisfied: chardet<5.0.0,>=3.0.4 in /tmp/dl-miniconda-e9ufinuf/lib/python3.10/site-packages (from datalad==0+unknown) (4.0.0)
Requirement already satisfied: packaging in /tmp/dl-miniconda-e9ufinuf/lib/python3.10/site-packages (from datalad==0+unknown) (21.3)
Requirement already satisfied: boto in /tmp/dl-miniconda-e9ufinuf/lib/python3.10/site-packages (from datalad==0+unknown) (2.49.0)
Requirement already satisfied: humanize in /tmp/dl-miniconda-e9ufinuf/lib/python3.10/site-packages (from datalad==0+unknown) (4.2.3)
Requirement already satisfied: keyrings.alt in /tmp/dl-miniconda-e9ufinuf/lib/python3.10/site-packages (from datalad==0+unknown) (4.1.1)
Requirement already satisfied: python-gitlab in /tmp/dl-miniconda-e9ufinuf/lib/python3.10/site-packages (from datalad==0+unknown) (3.6.0)

so we get 0+unknown version. and that happens rarely but somehow consistently for me in this and #6841

$> datalad foreach-dataset "git grep -l 'datalad==0+unknown'  || :"
foreach-dataset(ok): /mnt/datasets/datalad/ci/logs/2022 (dataset)
foreach-dataset(ok): /mnt/datasets/datalad/ci/logs/2022/01 (dataset)
02/pr/6789/fb05b8b/travis-14194-failed/3.txt
11/push/maint/558c0c3/travis-14262-failed/3.txt
foreach-dataset(ok): /mnt/datasets/datalad/ci/logs/2022/06 (dataset)
11/push/maint/9679312/travis-14264-failed/3.txt
15/pr/6841/ed686d2/travis-14273-failed/3.txt
15/pr/6842/d449c68/travis-14275-failed/3.txt
15/push/maint/8c65776/travis-14274-failed/3.txt
foreach-dataset(ok): /mnt/datasets/datalad/ci/logs/2022/07 (dataset)
foreach-dataset(ok): /mnt/datasets/datalad/ci/logs/2022/05 (dataset)
foreach-dataset(ok): /mnt/datasets/datalad/ci/logs/2022/04 (dataset)
foreach-dataset(ok): /mnt/datasets/datalad/ci/logs/2022/03 (dataset)
foreach-dataset(ok): /mnt/datasets/datalad/ci/logs/2022/02 (dataset)

any idea @jwodder how/why that would keep happening to me? (we are still using versioneer here)

[yarikoptic]

Ok, we will deal with that one separately

[github-actions]

🚀 PR was released in 0.17.2 🚀