Fix missing curl dependencies on Cirrus CI

Author: Thomasdezeeuw

.cirrus.yml

@@ -7,7 +7,7 @@ env:
 task:
   name: FreeBSD
   setup_script:
-    - pkg install -y curl
+    - pkg install -y libnghttp2 curl
     - curl https://sh.rustup.rs -sSf --output rustup.sh
     - sh rustup.sh -y --profile minimal
   cargo_cache: