Update dependency wpackagist-plugin/activitypub to v0.17.0

This MR contains the following updates:

Package	Type	Update	Change
wpackagist-plugin/activitypub (source)	require	minor	0.16.2 -> 0.17.0

---

Dependency Lookup Warnings

Warnings were logged while processing this repo. Please check the Dependency Dashboard for more information.

---

Configuration

Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

Automerge: Disabled by config. Please merge this manually once you are satisfied.

Rebasing: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox.

Ignore: Close this MR and you won't be reminded about this update again.

---

• If you want to rebase/retry this MR, check this box

---

This MR has been generated by Renovate Bot.

composer.json

@@ -127,7 +127,7 @@
         "wpackagist-plugin/event-organiser": "3.12.3",
         "noblogs/ai-authenticate-rest-api-plugin": "0.0.3",
         "wpackagist-plugin/multisite-custom-css": "1.0",
-        "wpackagist-plugin/activitypub": "0.16.2",
+        "wpackagist-plugin/activitypub": "0.17.0",
         "wpackagist-plugin/memcached": "4.0.0"
     },    
     "extra": {