Update copyright headers (#3161)

* chore: 🤖 remove hashi copyright .github headers and update config

* chore: 🤖 remove remaining hashicorp copyright headers

* Add missing copyright headers

.copywrite.hcl

@@ -8,7 +8,6 @@ project {
   # Supports doublestar glob patterns for more flexibility in defining which
   # files or folders should be ignored
   header_ignore = [
-    ".github/**",
     ".husky/**",
     "**/node_modules/**",
     "**/dist/**",