fix(bottle): Prevent internal error on 404

[sentrivana]

request.route can throw a RuntimeError: This request is not connected to a route..

Closes #3583

[antonpirker]

🔥

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 4 lines in your changes missing coverage. Please review.

Project coverage is 79.43%. Comparing base (4c9731b) to head (38c304b).
Report is 1 commits behind head on master.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
sentry_sdk/integrations/bottle.py	50.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4131      +/-   ##
==========================================
- Coverage   79.48%   79.43%   -0.06%     
==========================================
  Files         140      140              
  Lines       15624    15630       +6     
  Branches     2651     2651              
==========================================
- Hits        12419    12415       -4     
- Misses       2372     2376       +4     
- Partials      833      839       +6     

Files with missing lines	Coverage Δ
sentry_sdk/integrations/bottle.py	82.14% <50.00%> (-2.77%)	⬇️

... and 8 files with indirect coverage changes