Add support for Archlinux and RHEL-Clones Almalinux&Rockylinux

Also resorted "cmdline_python" a little bit because of YAML syntax

create_inventory_lxc.yml

@@ -17,27 +17,34 @@
     #service_password: {{ service_username }}
     #service_ssh_keys: {{ ssh_keys }}
 
+    # "*cmdline_" must be listed AFTER "^cmdline_"!
     cmdline_python:
       alpine:
         - "apk add -U python3"
+      archlinux:
+        - "pacman -Sy"
+        - "pacman -S --noconfirm python"
       centos: &cmdline_python_centos
         - "yum clean all"
         - "yum makecache"
         - "yum install -y python3 || true"
+      almalinux: *cmdline_python_centos
+      fedora: *cmdline_python_centos
+      rockylinux: *cmdline_python_centos
       debian: &cmdline_python_debian
         - "apt-get -y update"
         - "apt-get install -y python3 python3-apt"
       devuan: *cmdline_python_debian
-      fedora: *cmdline_python_centos
+      ubuntu: *cmdline_python_debian
       opensuse:
         - "zypper --gpg-auto-import-keys --no-gpg-checks -n refresh"
         - "zypper --gpg-auto-import-keys --no-gpg-checks -n install python3"
-      ubuntu: *cmdline_python_debian
       voidlinux:
         - "xbps-install -Suy python3 libgcc"
 
     ssh_package_name:
       alpine: openssh
+      archlinux: openssh
       opensuse: openssh
       voidlinux: openssh