fixing bug with red_teaming_bot

[rlundeen2]

Description

There was a bug with red_teaming_bot where not all the conversations were actually sent in multi-turn conversations. This fixes that bug, and modifies a test to catch this happening again

Tests

• no new tests required
• new tests added
• [ x] existing tests adjusted

Documentation

• [x ] no documentation changes needed
• documentation added or edited
• example notebook added or updated

[github-actions]

Test Results

83 tests  ±0   83 ✅ ±0   7s ⏱️ ±0s
 1 suites ±0    0 💤 ±0 
 1 files   ±0    0 ❌ ±0 

Results for commit 4d6cad1. ± Comparison against base commit 871e7aa.

♻️ This comment has been updated with latest results.