Fix doctests

[vhirtham]

Changes

Fix doctest failure due to new pint version

Related Issues

[CagtayFabry]

we might let the pint team know that the new formatting system will remove the default setting for unit formatting with syntax like :.2f (it worked with 0.18)

[vhirtham]

Now it's official... this week is the worst one regarding dependencies -.- Fixed one problem to get another... https://readthedocs.org/projects/weldx/builds/16566272/

[codecov]

Codecov Report

Merging #734 (19d4107) into master (af9df21) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #734   +/-   ##
=======================================
  Coverage   95.88%   95.88%           
=======================================
  Files          92       92           
  Lines        6496     6496           
=======================================
  Hits         6229     6229           
  Misses        267      267           

Impacted Files	Coverage Δ
weldx/geometry.py	96.80% <ø> (ø)

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[github-actions]

Unit Test Results

       1 files  ±0         1 suites  ±0   3m 2s ⏱️ +5s
2 158 tests ±0  2 158 ✔️ +2  0 💤 ±0  0 ❌  - 2 

Results for commit 19d4107. ± Comparison against base commit 038b5bb.