DM-34386: Improve doImport error message.

[timj]

Rather than:

Unable to import "lsst.utils.version.__version__"

instead

Unable to import '"lsst.utils.version.__version__"' (No module named '"lsst')

Checklist

• ran Jenkins
• added a release note for user-visible changes to doc/changes

[codecov]

Codecov Report

Merging #122 (360c47f) into main (617c0b0) will increase coverage by 0.00%.
The diff coverage is 100.00%.

❗ Current head 360c47f differs from pull request most recent head fc7f16e. Consider uploading reports for the commit fc7f16e to get more accurate results

@@           Coverage Diff           @@
##             main     #122   +/-   ##
=======================================
  Coverage   91.70%   91.71%           
=======================================
  Files          42       42           
  Lines        2664     2667    +3     
=======================================
+ Hits         2443     2446    +3     
  Misses        221      221           

Impacted Files	Coverage Δ
python/lsst/utils/doImport.py	95.00% <100.00%> (+0.40%)	⬆️

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[fritzm]

LGTM -- thanks!