mariadb-galera: 26.4.19 -> 26.4.20

[Conni2461]

Description of changes

Release Notes

Notable changes and fixes in Galera since latest release 4.19:

• improve error and warning messages handling in the library. System error
  numbers and messages are hidden from thrown exceptions, except for the cases
  where the exception is thrown because of error from system call. Some warning
  level messages in gcomm and GCS have been changed to info level in cases where
  the message does not require action from the administrator.

https://releases.galeracluster.com/galera-4/release-notes-galera-26.4.20.txt

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 24.11 Release Notes (or backporting 23.11 and 24.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

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[0x4A6F]

Result of nixpkgs-review pr 332445 run on aarch64-linux 1

1 package built:

• mariadb-galera