Mitigate session closed error in Netgear LTE

[tkdrob]

Proposed change

Before this PR, a number of users have reported issues with the aiohttp ClientSession being closed with no way to fix via reload. They would have to resort to restarting Home Assistant which did not always work. On all 3 of my Mac, production NUC running Supervised, and Home Assistant Blue, this was never an issue for me. Only when the Mac was under heavy load, would it possibly fail and even then it was not consistently failing. This PR should now enable impacted users to reload the integration either manually or with the homeassistant.reload_config_entry service in an automation for the time being.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue: Error setting up entry Netgear LM1200 for netgear_lte #108524
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• I have followed the perfect PR recommendations
• The code has been formatted using Ruff (ruff format homeassistant tests)
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• For the updated dependencies - a link to the changelog, or at minimum a diff between library versions is added to the PR description.
• Untested files have been added to .coveragerc.

To help with the load of incoming pull requests:

• I have reviewed two other open pull requests in this repository.

[edenhaus]

Thanks @tkdrob 👍