Updates for gocomics.com crawlers

[datagutten]

• UpdateGoComicsComCrawlerBase to use their API instead of scraping the site
• Make URLs consistent with https and no trailing slash
• Add more crawlers

[codecov]

Codecov Report

❌ Patch coverage is 0% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 51.74%. Comparing base (d0184ee) to head (7c267ad).

Files with missing lines	Patch %	Lines
src/comics/aggregator/crawler.py	0.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #641      +/-   ##
==========================================
+ Coverage   51.64%   51.74%   +0.09%     
==========================================
  Files          36       36              
  Lines        1700     1695       -5     
==========================================
- Hits          878      877       -1     
+ Misses        822      818       -4     

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