Bump @primer/primitives to 7.11.5 (#3120)

* npm install @primer/primitives@7.11.5

* Updating`theme-preval` snapshots

* Re-run

```
npm run build
npm run test -- -u
```

So that /themePreval.test.ts.snap also gets the new timestamp

* Update `theme-preval` snapshots docs

* Create .changeset/old-falcons-learn.md

* test(vrt): update snapshots

---------

Co-authored-by: simurai <simurai@users.noreply.github.com>

Author: simurai

.changeset/old-falcons-learn.md

@@ -94,7 +94,7 @@
     "@lit-labs/react": "1.1.1",
     "@primer/behaviors": "1.3.3",
     "@primer/octicons-react": "^18.0.0",
-    "@primer/primitives": "7.11.3",
+    "@primer/primitives": "7.11.5",
     "@react-aria/ssr": "^3.1.0",
     "@styled-system/css": "^5.1.5",
     "@styled-system/props": "^5.1.5",