Change Amazon Linux references to 2023

Prior to this, Beaker used DNF for every type of Amazon Linux. However,
DNF is only the default package manager for Amazon Linux >= 2023.

This commit updates instances of Amazon Linux in the install_package and
uninstall_package methods to reference Amazon Linux 2023 specifically.

lib/beaker/host/unix/pkg.rb

@@ -96,7 +96,7 @@ def install_package(name, cmdline_args = '', version = nil, opts = {})
           name = "#{name}-#{version}"
         end
         execute("dnf -y #{cmdline_args} install #{name}", opts)
-      when /amazon|cisco|fedora|centos|redhat|eos|el-/
+      when /amazon-2023|cisco|fedora|centos|redhat|eos|el-/
         if version
           name = "#{name}-#{version}"
         end
@@ -183,7 +183,7 @@ def uninstall_package(name, cmdline_args = '', opts = {})
       execute("zypper --non-interactive rm #{name}", opts)
     when /el-4/
       @logger.debug("Package uninstallation not supported on rhel4")
-    when /amazon|fedora-(2[2-9]|3[0-9])/
+    when /amazon-2023|fedora-(2[2-9]|3[0-9])/
       execute("dnf -y #{cmdline_args} remove #{name}", opts)
     when /cisco|fedora|centos|redhat|eos|el-/
       execute("yum -y #{cmdline_args} remove #{name}", opts)