fix(llc): fix error while parsing unknown body

[renefloor]

Submit a pull request

Linear: FLU-322

CLA

• I have signed the Stream CLA (required).
• The code changes follow best practices
• Code changes are tested (add some information if not applicable)

Description of the pull request

Currently the intercepter always try to parse the error body into a StreamApiError, but that doesn't always make sense.
For example a 404 can give a body of 404 page not found, trying to parse this will throw an error FormatException, which makes the console log very confusing.

Screenshots / Videos

Before:

After:

[codecov]

Codecov Report

❌ Patch coverage is 0% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 28.39%. Comparing base (457b293) to head (a8b5381).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
...stream_core/lib/src/api/stream_core_dio_error.dart	0.00%	5 Missing ⚠️

❌ Your patch status has failed because the patch coverage (0.00%) is below the target coverage (80.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #18      +/-   ##
==========================================
+ Coverage   26.56%   28.39%   +1.83%     
==========================================
  Files          49       49              
  Lines         960      972      +12     
==========================================
+ Hits          255      276      +21     
+ Misses        705      696       -9     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.