refactor: Update get_github_installation_ids to use httpx

[tofarr]

This PR updates the get_github_installation_ids function to use httpx instead of requests with call_sync_from_async. This change makes the code more consistent with other functions in the file and more efficient by using native async HTTP requests.

Changes:

• Replace requests with httpx.AsyncClient()
• Use async context manager for better resource management
• Update error handling to use httpx.HTTPError
• Remove explicit response.close() as it is handled by the context manager
• Make the code pattern consistent with other functions in the file

---

To run this PR locally, use the following command:

docker run -it --rm   -p 3000:3000   -v /var/run/docker.sock:/var/run/docker.sock   --add-host host.docker.internal:host-gateway   -e SANDBOX_RUNTIME_CONTAINER_IMAGE=docker.all-hands.dev/all-hands-ai/runtime:0e13a48-nikolaik   --name openhands-app-0e13a48   docker.all-hands.dev/all-hands-ai/openhands:0e13a48

[malhotra5]

LGTM!

[amanape]

Good change! Why not create a generic async fetch from now, too?

E.g.:

async def async_fetch(
    method: str = 'GET',
    url: str = '',
    headers: dict = None,
    params: dict = None,
):
    try:
        async with httpx.AsyncClient() as client:
            response = await client.request(
                method=method.upper(),
                url=url,
                headers=headers,
                params=params,
            )
            response.raise_for_status() 
            return response.json() 
    except httpx.HTTPError as e:
        #  Handle HTTP errors
        raise Exception(f'HTTP error: {e}')
    except Exception as e:
        # Handle other exceptions
        raise Exception(f'Error: {e}')

[tofarr]

Good change! Why not create a generic async fetch from now, too?

E.g.:

async def async_fetch(
    method: str = 'GET',
    url: str = '',
    headers: dict = None,
    params: dict = None,
):
    try:
        async with httpx.AsyncClient() as client:
            response = await client.request(
                method=method.upper(),
                url=url,
                headers=headers,
                params=params,
            )
            response.raise_for_status() 
            return response.json() 
    except httpx.HTTPError as e:
        #  Handle HTTP errors
        raise Exception(f'HTTP error: {e}')
    except Exception as e:
        # Handle other exceptions
        raise Exception(f'Error: {e}')

I like this idea - I'll do it in a later PR when there's time.