Some configuration migration tasks from RHUI3 to RHUI4 with rhui-manager migrate command fail.

Issue

Some configuration migration tasks from RHUI3 to RHUI4 with rhui-manager migrate command fail.

Chapter 1. Migrating Red Hat Update Infrastructure

# rhui-manager migrate --remote_system_user root --hostname xx.xx.xx.xx --password *** --keyfile_path /root/.ssh/id_rsa_rhua --force

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TASK [Execute migrate_custom_repos.py script on RHUI3] *************************************************************************************
[0;31mfatal: [xx.xx.xx.xx]: FAILED! => {"changed": true, "cmd": "/root/.rhui/migration/migrate_custom_repos.py --username *** --password ***", "delta": "0:00:00.153658", "end": "2022-12-01 14:32:16.813816", "msg": "non-zero return code", "rc": 1, "start": "2022-12-01 14:32:16.660158", "stderr": "Traceback (most recent call last):\n  File \"/root/.rhui/migration/migrate_custom_repos.py\", line 164, in <module>\n    repos = RepoData()\n  File \"/root/.rhui/migration/migrate_custom_repos.py\", line 27, in __init__\n    self.pulp = self.pulp_login(self.config, username, password)\n  File \"/root/.rhui/migration/migrate_custom_repos.py\", line 56, in pulp_login\n    pulp_ca_path = config.get('security', 'ssl_ca_crt')\n  File \"/usr/lib/python2.7/site-packages/rhui/tools/file_utils.py\", line 61, in get\n    raise RhuiException(error_codes.RHUI0018, section=section, config_key=option)\nrhui.common.exceptions.RhuiException: The configuration value found in [security] ssl_ca_crt is not valid.", "stderr_lines": ["Traceback (most recent call last):", "  File \"/root/.rhui/migration/migrate_custom_repos.py\", line 164, in <module>", "    repos = RepoData()", "  File \"/root/.rhui/migration/migrate_custom_repos.py\", line 27, in __init__", "    self.pulp = self.pulp_login(self.config, username, password)", "  File \"/root/.rhui/migration/migrate_custom_repos.py\", line 56, in pulp_login", "    pulp_ca_path = config.get('security', 'ssl_ca_crt')", "  File \"/usr/lib/python2.7/site-packages/rhui/tools/file_utils.py\", line 61, in get", "    raise RhuiException(error_codes.RHUI0018, section=section, config_key=option)", "rhui.common.exceptions.RhuiException: The configuration value found in [security] ssl_ca_crt is not valid."], "stdout": "", "stdout_lines": []}[0m

NO MORE HOSTS LEFT *************************************************************************************************************************
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