CentOS to AlmaLinux Server Upgrade Assistance

I am in need of an experienced system administrator who can help me upgrade my remote server from CentOS to AlmaLinux. The server is primarily used for web hosting.

Errors to Address:
- The pre-installation checks have revealed several issues that need to be resolved before the upgrade can proceed. The most critical of these is the GRUB2 core update.
- Additionally, there are BIND configuration issues that need to be addressed, specifically upgrading the configurations.

The server has also been flagged for:
- Custom LEAPP actors or files
- Packages not signed by Red Hat
- A discrepancy in Python versions
- The memcached service using a default configuration
- Potential PAM configuration issues with the pam_pkcs11 module
- Presence of PostgreSQL on the system

I would like to prioritize fixing the GRUB2 core update first, followed by addressing the BIND configuration issues.

Skills and Experience Needed:
- Proficient in Linux server administration, specifically with CentOS and AlmaLinux
- Experience troubleshooting GRUB2 core updates
- Familiarity with BIND configuration and upgrades
- Knowledgeable about database management, particularly with PostgreSQL
- Understands Python version discrepancies and their implications
- Ability to address issues with services such as memcached
- Experienced in PAM configuration and related modules
- Proficient in handling packages not signed by Red Hat
- Able to troubleshoot and resolve custom LEAPP actors or files

If you have the relevant skills and experience, I look forward to your proposal.