Fix yahoo error in tests

[Zlopez]

Signed-off-by: Michal Konečný [email protected]

[codecov]

Codecov Report

Merging #1005 (33e5316) into master (3bed582) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1005   +/-   ##
=======================================
  Coverage   97.36%   97.36%           
=======================================
  Files          65       65           
  Lines        4290     4290           
  Branches      594      594           
=======================================
  Hits         4177     4177           
  Misses         65       65           
  Partials       48       48           

Impacted Files	Coverage Δ
anitya/config.py	100.00% <ø> (ø)

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