[CON-218] Continue doesn't handle rate-limiting for embeddings providers

[sestinj]

Before submitting your bug report

• [X] I believe this is a bug. I'll try to join the Continue Discord for questions
• [X] I'm not able to find an open issue that reports the same bug
• [X] I've seen the troubleshooting guide on the Continue Docs

Relevant environment info

- OS:*
- Continue:*
- IDE:*

Description

Continue will sometimes receive 429 errors from OpenAI, etc.. when generating embeddings for the entire codebase. Just need to add basic exponential backoff

To reproduce

Change embeddingsProvider

Log output

No response

_CON-218