fix(deps): update dependency @edx/frontend-component-header to v8

Author: renovate[bot]

package-lock.json

@@ -31,7 +31,7 @@
   "dependencies": {
     "@edx/brand": "npm:@openedx/brand-openedx@^1.2.2",
     "@edx/frontend-component-footer": "^14.6.0",
-    "@edx/frontend-component-header": "^6.2.0",
+    "@edx/frontend-component-header": "^8.0.0",
     "@edx/frontend-platform": "^8.4.0",
     "@edx/openedx-atlas": "^0.7.0",
     "@fortawesome/fontawesome-svg-core": "^6.6.0",