github-ci: cleanups to almalinux minimal build

Don't install extra repo's in the script, do it in CI. These are covered
by the documentation as they vary depending on the version and variant.

.github/workflows/builds.yml

@@ -1310,9 +1310,6 @@ jobs:
           name: dist
       - run: tar xf suricata-*.tar.gz --strip-components=1
 
-      - name: Update packages and install sudo
-        run: dnf -y update && dnf install -y sudo
-
       - name: Install AlmaLinux 9 extra repositories
         run: |
           dnf -y update

scripts/docs-almalinux9-minimal-build.sh

@@ -3,7 +3,6 @@
 # Serves for RPM-based docs and is verified by Github Actions
 
 # install-guide-documentation tag start: Minimal RPM-based dependencies
-sudo dnf install -y dnf-plugins-core epel-release
 sudo dnf install -y cargo gcc jansson-devel libpcap-devel \
     libyaml-devel make pcre2-devel zlib-devel
 # install-guide-documentation tag end: Minimal RPM-based dependencies