Remove 60 MB of the letter 'a' from spec/fixtures/vcr_cassettes

[compumike]

The majority of the installed size of the ruby_llm gem was simply repeats of the letter a. This PR uses VCR's filter_sensitive_data to avoid storing 60 million bytes of 'a' in spec/fixtures/vcr_cassettes. 😂

Before

du -s spec/fixtures 
73448   spec/fixtures

ls -al chat_real_error_scenarios_*
10002062 chat_real_error_scenarios_anthropic_claude-3-5-haiku-20241022_handles_context_length_exceeded_errors.yml
10002198 chat_real_error_scenarios_bedrock_anthropic_claude-3-5-haiku-20241022-v1_0_handles_context_length_exceeded_errors.yml
10001980 chat_real_error_scenarios_deepseek_deepseek-chat_handles_context_length_exceeded_errors.yml
10001862 chat_real_error_scenarios_gemini_gemini-2_0-flash_handles_context_length_exceeded_errors.yml
10002399 chat_real_error_scenarios_openai_gpt-4_1-nano_handles_context_length_exceeded_errors.yml
10002014 chat_real_error_scenarios_openrouter_anthropic_claude-3_5-haiku_handles_context_length_exceeded_errors.yml

After

du -s spec/fixtures 
14864   spec/fixtures

ls -al chat_real_error_scenarios_*
2202 chat_real_error_scenarios_anthropic_claude-3-5-haiku-20241022_handles_context_length_exceeded_errors.yml
2338 chat_real_error_scenarios_bedrock_anthropic_claude-3-5-haiku-20241022-v1_0_handles_context_length_exceeded_errors.yml
2120 chat_real_error_scenarios_deepseek_deepseek-chat_handles_context_length_exceeded_errors.yml
3207 chat_real_error_scenarios_gemini_gemini-2_0-flash_handles_context_length_exceeded_errors.yml
2539 chat_real_error_scenarios_openai_gpt-4_1-nano_handles_context_length_exceeded_errors.yml
2154 chat_real_error_scenarios_openrouter_anthropic_claude-3_5-haiku_handles_context_length_exceeded_errors.yml

[tpaulshippy]

If you think that's bad, wait until you see #234 haha. Probably need to do the same thing there.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.96%. Comparing base (701d5d0) to head (dd90b29).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #287      +/-   ##
==========================================
+ Coverage   88.93%   88.96%   +0.02%     
==========================================
  Files          75       75              
  Lines        2865     2863       -2     
  Branches      559      559              
==========================================
- Hits         2548     2547       -1     
+ Misses        317      316       -1     

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[crmne]

A clever solution! Thank you for this.

Just a minor correction: this doesn't affect the installed size of the gem, just the size of the repo.

[compumike]

Just a minor correction: this doesn't affect the installed size of the gem, just the size of the repo.

Ah, I see, thanks! I was temporarily pointing bundler to my git branch, so I noticed the increased size. But now that I see ruby_llm.gemfile, I understand that you're correct that none of spec makes it into the gem. Thank you.