Add buttons and deprecate services for Fritz

[chemelli74]

Proposed change

• add "reboot", "reconnect", "firmware update" buttons
• log warning if "reboot" or "reconnect" services are used

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)
• 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:
• 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
• The code has been formatted using Black (black --fast homeassistant tests)
• Tests have been added to verify that the new code works.

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

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  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.
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[probot-home-assistant]

Hey there @mammuth, @AaronDavidSchneider, mind taking a look at this pull request as it has been labeled with an integration (fritz) you are listed as a code owner for? Thanks!
_{^{(message by CodeOwnersMention)}}

[mib1185]

LGTM 👍

[frenck]

This PR is missing the a matching documentation PR to clean up the deprecated services from the documentation. @mib1185 Please make sure you check if the docs are up to date when e.g., services change :)

@chemelli74 Could you please open a PR for that?

[mib1185]

@mib1185 Please make sure you check if the docs are up to date when e.g., services change :)

I vow to do better 🙂

[MartinHjelmare]

Please address the comment in a new PR. Thanks!

[frenck]

This PR should have been marked as a breaking change, as this is a deprecation as well. Did it now :)