Various ports to open.mp

[Hual]

• Build action on .cmake file change
• Conan cache for actions
• Update Python & CMake actions
• Correct whitespace for build.yml
• Remove *.cmake from gitignore
• Add Fixes component condition set to true by default
• Fix VS startup project property
• Don't eliminate unused debug types for abi-check to work properly
• Remove variable commands, replace them with a single code point that works for all console variables; support for the old console variable syntax
• Add queryflood to the obsolete options
• Don't overwrite custom-set query rules with system updates
• Fix crash with GMX on empty gamemode list
• Add AMXStringFormatter which formats AMX strings on the stack instead of using a global variable
• Avoid code duplication in AddServerRule and SetServerRule
• Return 0 in GetPlayerSirenState if vehicle is null
• Add nightly repo specification for abi-check
• Always chown the conan directory to make conan cache work