Bump @primer/primitives to v11.3.0 (#647)

* Initial plan

* Bump @primer/primitives to v11.3.0

Co-authored-by: langermank <18661030+langermank@users.noreply.github.com>

* Update changelog for primer/primitives version 11.3.0

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: langermank <18661030+langermank@users.noreply.github.com>

Author: Copilot

.changeset/chilly-pillows-run.md

@@ -0,0 +1,5 @@
+---
+"@primer/stylelint-config": patch
+---
+
+Update primer/primitives to version 11.3.0

package-lock.json

@@ -58,7 +58,7 @@
     "@changesets/changelog-github": "^0.5.0",
     "@changesets/cli": "2.27.10",
     "@github/prettier-config": "^0.0.6",
-    "@primer/primitives": "^10.4.0",
+    "@primer/primitives": "^11.3.0",
     "@rollup/plugin-commonjs": "^28.0.0",
     "@rollup/plugin-json": "^6.1.0",
     "@rollup/plugin-node-resolve": "^15.2.3",