Add update available binary sensor and verify ssl for connection setup to synology_dsm

[mib1185]

Proposed change

Type of change

• Spelling, grammar or other readability improvements (current branch).
• Adjusted missing or incorrect information in the current documentation (current branch).
• Added documentation for a new integration I'm adding to Home Assistant (next branch).
  • I've opened up a PR to add logo's and icons in Brands repository.
• Added documentation for a new feature I'm adding to Home Assistant (next branch).
• Removed stale or deprecated documentation.

Additional information

• Link to parent pull request in the codebase: Add update available binary sensor to synology_dsm core#42378 && Add verify_ssl option for connection setup to synology_dsm core#42539
• Link to parent pull request in the Brands repository:
• This PR fixes or closes issue:

Checklist

• This PR uses the correct branch, based on one of the following:
  • I made a change to the existing documentation and used the current branch.
  • I made a change that is related to an upcoming version of Home Assistant and used the next branch.
• The documentation follows the Home Assistant documentation standards.

[frenck]

✅ Approved. Can be merged as soon as the parent PR gets merged.

[mib1185]

sorry, accidental committed to the same branch on my fork, but already reverted it.

[Quentame]

Add yourself as ha_codeowners (top of the file)

[Quentame]

Add yourself as ha_codeowners (top of the file)

[frenck]

@Quentame Not a problem, but the code-owner data is synced from the codebase. There is no need to correct those 😉