Wait for MQTT entry on snips integration startup

[jbouwh]

Proposed change

Wait for MQTT entry to set up before the snips integration is set up.

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 #
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• Link to documentation pull request:

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[jbouwh]

@bdraco I have opened #81771 in advance.

[bdraco]

Unless we plan on tagging the config entry change for .3 I don't think we can tag this one

[home-assistant]

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

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[bdraco]

#76980 isn't tagged for .4 so I don't think we can tag this one unless we want to add that one as well.

[jbouwh]

#76980 isn't tagged for .4 so I don't think we can tag this one unless we want to add that one as well.

I'll remove the tag for .4. In that case it must wait till 2022.12.0