Skip disconnected_way validation for Golf Walking Paths

[Kayd-06]

Golf walking paths (highway=path + golf=path + foot=designated) are often intentionally isolated and should not trigger the disconnected_way validation warning.

I've updated the logic in [modules/validations/disconnected_way.js] and added a new test case in test/spec/validations/disconnected_way.js to verify the fix.

Fixes #11863

[k-yle]

did you test your PR?

[Kayd-06]

Yes, I have verified the fix in two ways:

1. Automated Tests: I added a new test case to test/spec/validations/disconnected_way.js
   specifically for the isolated golf path tags. I ran the full validation suite via vitest, and all 5 tests passed.

2. Manual Verification: I ran the editor locally and confirmed that:

• A way with highway=path + golf=path + foot=designated no longer triggers the "disconnected way" warning.
• Regular paths still correctly trigger the warning when disconnected.

[k-yle]

what made you choose that specific tag combination? it's different to the tags used by the preset, so it won't fix the example mentioned in #11863

[Kayd-06]

I've updated the validation to match the actual iD preset tagging and added tests covering:

• Golf walking path preset
• Golf cartpath preset
• The original reporter tag combination

Please let me know if anything else should be adjusted.

[matkoniecz]

can you answer

what made you choose that specific tag combination?

? How you ended with those tags?