Bump py-synologydsm-api to 2.1.1

[mib1185]

Proposed change

• diff: mib1185/py-synologydsm-api@v2.0.2...v2.1.1
• most important change: Fetch asyncio timeout error mib1185/py-synologydsm-api#252

it also contains a new API feature (Photos), but is not used yet

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 Synonlogy DSM integration fails on start #87156
• This PR is related to issue:
• Link to documentation pull request:

Checklist

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[home-assistant]

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

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