update Rocky Linux 8 build

rocky.sh -> rockylinux8.sh
yum -> dnf

Author: calccrypto

.github/workflows/test.yml

@@ -91,9 +91,9 @@ jobs:
       if:   matrix.img == 'centos:8'
       run:  contrib/CI/centos8.sh
 
-    - name: Rocky Linux Prerequisites
+    - name: Rocky Linux 8 Prerequisites
       if:   matrix.img == 'rockylinux:8'
-      run:  contrib/CI/rocky.sh
+      run:  contrib/CI/rockylinux8.sh
 
     - name: Ubuntu Prerequisites
       if:   startsWith(matrix.img, 'ubuntu:')

contrib/CI/rocky.sh contrib/CI/rockylinux8.shcontrib/CI/rocky.sh renamed to contrib/CI/rockylinux8.sh

@@ -65,10 +65,10 @@
 set -e
 
 # install Extra Packages for Enterprise Linux (EPEL)
-yum -y install epel-release
+dnf -y install epel-release
 
 # install libraries
-yum -y install fuse-devel libattr-devel pcre2-devel zlib-devel
+dnf -y install fuse-devel libattr-devel pcre2-devel zlib-devel
 
 # install required packages
-yum -y install attr autoconf clang cmake3 findutils fuse git make patch pkgconfig python3 sudo
+dnf -y install attr autoconf clang cmake3 findutils fuse git make patch pkgconfig python3 sudo