Workaround avahi issues on synology platform

[Supereg]

♻️ Current situation

As described in #993 there are issues with avahi advertiser feature introduced in #970 where we detect avahi-daemon restarts.
This feature fails on synology platforms and causes the whole advertiser to fail.

💡 Proposed solution

This PR introduces a workaround to be able to start the advertiser even when the restart listener is not in place.

⚙️ Release Notes

• Introduced a workaround for issues with avahi advertiser on Synology

➕ Additional Information

Testing

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Reviewer Nudging

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[coveralls]

Pull Request Test Coverage Report for Build 4845308173

• 0 of 9 (0.0%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.03%) to 65.014%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/lib/Accessory.ts	0	3	0.0%
src/lib/Advertiser.ts	0	6	0.0%

Totals
Change from base Build 4845298427:	-0.03%
Covered Lines:	7396
Relevant Lines:	10594

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💛 - Coveralls

[ebaauw]

On my DiskStation running DSM 7.1.1-42962 Update 5, using avahi as advertiser still gives an error on startup:

[4/30/2023, 9:33:19 PM] Homebridge v1.6.1 (HAP v0.11.1) (ds2) is running on port 51826.
Failed to create listener for avahi-daemon server state. The system will not be notified about restarts of avahi-daemon and will therefore stay undiscoverable in those instances. Error message: Error: No such interface found

But I do see the mDNS advertisement in Discovery.

For reference, v1.6.0 gives:

[4/30/2023, 9:39:59 PM] Homebridge v1.6.0 (HAP v0.11.0) (ds1) is running on port 51826.
Could not create mDNS advertisement. The HAP-Server won't be discoverable: Error: No such interface found

And results in no mDSN advertisement.

Both versions issue no errors and show mDNS advertisements when using ciao instead.

[Supereg]

That is expected when you look at the source code changes.
In the end it is a workaround as nobody could identify the real issue behind us not being able to acquire the dBus interface on synology.

I think just printing a warning is the best case for now.

[Supereg]

1.6.1 basically restore the functionality pre 1.6.0 (not being able to detect restarts).

[Rikezzz]

This update also update node.js?
how to update it node