Merge pull request #365 from wpengine/upgrade-next

chore: Upgrade next to 15.5.8

Author: ahuseyn

package.json

@@ -40,7 +40,7 @@
 		"graphql": "^16.12.0",
 		"http-status-codes": "^2.3.0",
 		"lodash.debounce": "^4.0.8",
-		"next": "^15.5.7",
+		"next": "^15.5.8",
 		"next-mdx-remote-client": "^2.1.7",
 		"next-sitemap": "^4.2.3",
 		"react": "^19.2.1",