safe_path_join does not properly join paths

[k-boikov]

⚠️ Search for existing issues first ⚠️

• I have searched the existing issues, and there is no existing issue for my problem

GPT-3 or GPT-4

• I am using Auto-GPT with GPT-3 (GPT-3.5)

Steps to reproduce 🕹

Ask AutoGPT to search for some files in the "/workspace" directory

Current behavior 😯

Throws error Error: Attempted to access path 'C:\workspace' outside of working directory 'C:\Users\Kris\PycharmProjects\Auto-GPT\auto_gpt_workspace'.

Expected behavior 🤔

path_in_workspace should always return a path in the workspace

Your prompt 📝

ai_goals:
- try to search files that have the word test in their names
ai_name: search files
ai_role: try to search files that have the word test in their name

[k-boikov]

Maybe same as #2101

[Pwuts]

Steps to reproduce 🕹

Ask AutoGPT to search for some files in the "/workspace" directory

It's behaving as intended. If you want to be able to access files outside the workspace, keep an eye on #1875.