CompatHelper: add new compat entry for DocumenterMermaid at version 0.2 for package docs, (keep existing compat)#889

github-actions[bot] wants to merge 1 commit intomainJuliaDiff/DifferentiationInterface.jl:mainfrom

compathelper/new_version/2025-10-30-02-04-23-320-03452924141JuliaDiff/DifferentiationInterface.jl:compathelper/new_version/2025-10-30-02-04-23-320-03452924141Copy head branch name to clipboard