Fix link resolver crashing when provided url is invalid

[pajlada]

Pull request checklist:

• CHANGELOG.md was updated, if applicable

Description

• Fix crash if provided URL is broken

[codecov]

Codecov Report

Merging #311 (adfe692) into master (ff81073) will increase coverage by 0.18%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #311      +/-   ##
==========================================
+ Coverage   48.45%   48.63%   +0.18%     
==========================================
  Files          97       97              
  Lines        3046     3047       +1     
==========================================
+ Hits         1476     1482       +6     
+ Misses       1531     1526       -5     
  Partials       39       39              

Impacted Files	Coverage Δ
internal/resolvers/default/link_resolver.go	42.22% <100.00%> (+4.16%)	⬆️

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