Update ssdp discovery in dlna_dmr

[epenet]

Proposed change

As introduced in #59931, UPnP information in ssdp discovery has been moved to discovery_info[ATTR_UPNP].
This PR adjusts dlna_dmr to comply with that.

NOTE: This is a draft PR to show how components and corresponding tests will need to be amended once #59931 is merged and before the corresponding removal PR #59960 is merged.
It will need rebase after #59931 is merged in.

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 #
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• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
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• Tests have been added to verify that the new code works.

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  Updated by running python3 -m script.gen_requirements_all.
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[probot-home-assistant]

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

[epenet]

This is no longer needed