use current year in test_search_dates_with_prepositions

[MeggyCal]

When the year is not specified, the current year is used. We discovered the test failure today.

Fixes #1286.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.60%. Comparing base (b7bb1a5) to head (bdde09a).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1294   +/-   ##
=======================================
  Coverage   96.60%   96.60%           
=======================================
  Files         235      235           
  Lines        2886     2886           
=======================================
  Hits         2788     2788           
  Misses         98       98           

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[bmwiedemann]

I tested that this fixes the test, even when running in year 2042.

[Gallaecio]

Closing and reopening so that the CI runs with #1296.

[Gallaecio]

Thanks!