Add matrix message format 'notice' (m.notice)

[oleg-fiksel]

This format is a so called "bot notice" is used for bot to post information into a room. This message will not cause notification on the members of the room.

This is very usefull for home-assistant tasks, which don't need user attention but just FYI messages.

Proposed change

Add new format m.notice for posting messages via Matrix Connector. m.notice or "bot notice" is commonly used in Matrix for posting information into chat rooms by bot. This will not trigger a notification in the room.

Type of change

• [x] New feature (which adds functionality to an existing integration)

Additional information

• Link to documentation pull request:

Checklist

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

[home-assistant[bot]]

Please take a look at the requested changes, and use the Ready for review button when you are done, thanks :+1:

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[home-assistant[bot]]

Hey there @paarthshah, mind taking a look at this pull request as it has been labeled with an integration (matrix) you are listed as a code owner for? Thanks!

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[oleg-fiksel]

Thanks for the fast response @PaarthShah ! I will address the open topics in the next days.

[oleg-fiksel]

:heavy_check_mark: created documentation PR

[oleg-fiksel]

Is there something pending from my side on this PR or are we just waiting for further review?

[github-actions[bot]]

There hasn't been any activity on this pull request recently. This pull request has been automatically marked as stale because of that and will be closed if no further activity occurs within 7 days. If you are the author of this PR, please leave a comment if you want to keep it open. Also, please rebase your PR onto the latest dev branch to ensure that it's up to date with the latest changes. Thank you for your contribution!

[oleg-fiksel]

Hi! I didn't forget this PR. I will come back to this PR after a couple of months when I have more time.

[github-actions[bot]]

There hasn't been any activity on this pull request recently. This pull request has been automatically marked as stale because of that and will be closed if no further activity occurs within 7 days. If you are the author of this PR, please leave a comment if you want to keep it open. Also, please rebase your PR onto the latest dev branch to ensure that it's up to date with the latest changes. Thank you for your contribution!

[oleg-fiksel]

Sorry for the delay. I'm still planing to take this up again. Just need a bit more time.

[github-actions[bot]]

There hasn't been any activity on this pull request recently. This pull request has been automatically marked as stale because of that and will be closed if no further activity occurs within 7 days. If you are the author of this PR, please leave a comment if you want to keep it open. Also, please rebase your PR onto the latest dev branch to ensure that it's up to date with the latest changes. Thank you for your contribution!

[oleg-fiksel]

I need more time to incorporate the changes happened in the meantime on the tests in my PR (rebase).