Clean broken address data

[core23]

Subject

Remove zip code information from city name.

There are some events on Last.fm that contain invalid address data, e.g. the zip code is entered as a city name (https://www.last.fm/festival/4548967+Under+the+Black+Sun).

[codecov]

Codecov Report

Merging #77 into main will decrease coverage by 0.06%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##               main      #77      +/-   ##
============================================
- Coverage     25.85%   25.79%   -0.07%     
- Complexity      632      635       +3     
============================================
  Files            53       53              
  Lines          1690     1694       +4     
============================================
  Hits            437      437              
- Misses         1253     1257       +4     

Impacted Files	Coverage Δ	Complexity Δ
src/Crawler/EventInfoCrawler.php	0.00% <0.00%> (ø)	11.00 <0.00> (+3.00)

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