Update version to 0.7.1 (microsoft#6868)

Update OpenAIAssistantAgent doc (microsoft#6870)

Update version to 0.7.0 (microsoft#6865)

Setup publishing for pyautogen package (microsoft#6813)

Update to version 0.6.4 (microsoft#6784)

Update agentchat documentation with latest changes (microsoft#6735)

Update version to 0.6.1 (microsoft#6631)

Update version to 0.6.0 (microsoft#6624)

Simplify Azure Ai Search Tool (microsoft#6511)

## Why are these changes needed?

Simplified the azure ai search tool and fixed bugs in the code


## Related issue number

"Closes microsoft#6430 " 

## Checks

- [X] I've included any doc changes needed for
<https://microsoft.github.io/autogen/>. See
<https://github.com/microsoft/autogen/blob/main/CONTRIBUTING.md> to
build and test documentation locally.
- [X] I've added tests (if relevant) corresponding to the changes
introduced in this PR.
- [X] I've made sure all auto checks have passed.

Co-authored-by: Eric Zhu <[email protected]>

FIX/McpWorkbench_errors_properties_and_grace_shutdown (microsoft#6444)

## Why are these changes needed?
Our McpWorkbench required properties however mongodb-lens's some tools
do not has it. I will fix it from when properties is None, -> {}
Our McpWorkbench now does not have stop routine with without async with
McpWorkbench(params) as workbench: and lazy init. So, I will adding def
__del__: pass just insert that, It could show error.

## Related issue number

Closes microsoft#6425

## Checks

- [ ] I've included any doc changes needed for
<https://microsoft.github.io/autogen/>. See
<https://github.com/microsoft/autogen/blob/main/CONTRIBUTING.md> to
build and test documentation locally.
- [x] I've added tests (if relevant) corresponding to the changes
introduced in this PR.
- [x] I've made sure all auto checks have passed.