Test (linkchecker): Exclude checking dead link (#4720) (#4868)

Link in copyright header must be preserved, but we shouldn't check for it


(cherry picked from commit b038322)

Signed-off-by: Josh Romero <rmerqg@amazon.com>
Signed-off-by: Ashwin P Chandran <ashwinpc@amazon.com>
Co-authored-by: Josh Romero <rmerqg@amazon.com>

.lycheeexclude

@@ -114,3 +114,9 @@ https://a.tile.openstreetmap.org/
 http://www.creedthoughts.gov
 https://media-for-the-masses.theacademyofperformingartsandscience.org/
 https://yarnpkg.com/latest.msi
+https://forum.opensearch.org/
+https://facebook.github.io/jest/*
+http://helpmenow.com/problem2
+https://sass-lang.com/*
+http://api.jquery.com/*
+http://brandonaaron.net