EE build fails: add microdnf to ee spec for config_as_code workshop

[mannyci]

SUMMARY

ISSUE TYPE

• Bugfix Pull Request
• Docs Pull Request

COMPONENT NAME

• exercises

ADDITIONAL INFORMATION

• ee_list

---
ee_list:
  - name: "config_as_code"
    dependencies:
      galaxy:
        collections:
          - name: infra.controller_configuration
            version: 2.5.1
          - name: infra.ah_configuration
            version: 2.0.3
          - name: infra.ee_utilities
            version: 3.1.2
          - name: awx.awx
            version: 22.4.0
          - name: containers.podman
            version: 1.10.3
          - name: community.general
            version: 7.3.0

• Before

    "stdout_lines": [
        "Command that had error:",
        "  podman build -f context/Containerfile -t config_as_code context",
        "...showing last 20 lines of output...",
        "+ PIP_OPTS=",
        "+ install_bindep",
        "+ '[' -f bindep.txt ']'",
        "+ bindep -l newline",
        "+ sort",
        "+ '[' rhel == centos ']'",
        "++ bindep -b compile",
        "++ true",
        "+ compile_packages='podman",
        "python38-pytz",
        "python38-pyyaml",
        "python38-requests'",
        "+ '[' '!' -z 'podman",
        "python38-pytz",
        "python38-pyyaml",
        "python38-requests' ']'",
        "+ /usr/bin/dnf install -y podman python38-pytz python38-pyyaml python38-requests",
        "/output/scripts/assemble: line 75: /usr/bin/dnf: No such file or directory",

• After

    "msg": "",
    "rc": 0,
    "start": "2023-09-12 12:21:53.444677",
    "stderr": "",
    "stderr_lines": [],
    "stdout": "\u001b[92mComplete! The build context can be found at: /tmp/ansible.rgz5e_a8temp/context\u001b[0m",
    "stdout_lines": [
        "\u001b[92mComplete! The build context can be found at: /tmp/ansible.rgz5e_a8temp/context\u001b[0m"
    ]
}

[IPvSean]

@sean-m-sullivan can you check this out

[sean-m-sullivan]

This shouldn't be needed Did you set
ee_base_registry_username variable in the auth file?

if you do, the role automatically inserts this line
as per ee_utils defaults
and the base var here