Add libffi-dev to fedora

.github/workflows/fedora.yml

@@ -24,6 +24,7 @@ jobs:
           dnf -y install copr-cli make gcc-c++
           dnf -y upgrade git
           dnf -y install perl
+          dnf -y install libffi-devel
       - uses: actions/checkout@v1
       - uses: xmake-io/github-action-setup-xmake@v1
         with: