Update dependency wpackagist-theme/twentynineteen to v2.3

This MR contains the following updates:

Package	Type	Update	Change
wpackagist-theme/twentynineteen (source)	require	minor	2.2 -> 2.3

---

Configuration

Schedule: 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

@@ -68,7 +68,7 @@
         "wpackagist-theme/twentyeleven": "4.1",
         "wpackagist-theme/twentyfifteen": "3.2",
         "wpackagist-theme/twentyfourteen": "3.4",
-        "wpackagist-theme/twentynineteen": "2.2",
+        "wpackagist-theme/twentynineteen": "2.3",
         "wpackagist-theme/twentyseventeen": "2.9",
         "wpackagist-theme/twentysixteen": "2.6",
         "wpackagist-theme/twentyten": "3.6",