[CI-SKIP] Add curl requirement for building paper. (#4768)

* Add curl to contributing.md

* change semicolons and periods

Co-authored-by: Mariell <proximyst@proximyst.com>

scripts/requireDeps.sh

@@ -12,6 +12,7 @@ if [ -z "${1:-}" ]; then
     _is_dep_available git
     _is_dep_available patch
     _is_dep_available mvn
+    _is_dep_available curl
 
     # Ensure we don't have a JAVA_HOME set first.
     # Maven should work fine without the JAVA_HOME var as long as the JDK is on the PATH.