feat: frontend-component-header to 8.0.0, to rm Maintenance link (#2521)

BREAKING CHANGE: Removes Maintenance link in header, part of
openedx/edx-platform#36263

Full diff:
openedx/frontend-component-header@v6.2.0...v8.0.0

Author: kdmccormick

package-lock.json

@@ -45,7 +45,7 @@
     "@edx/brand": "npm:@openedx/brand-openedx@^1.2.3",
     "@edx/browserslist-config": "1.5.0",
     "@edx/frontend-component-footer": "^14.9.0",
-    "@edx/frontend-component-header": "^6.2.0",
+    "@edx/frontend-component-header": "^8.0.0",
     "@edx/frontend-enterprise-hotjar": "^7.2.0",
     "@edx/frontend-platform": "^8.4.0",
     "@edx/openedx-atlas": "^0.7.0",