[clang-tools-extra] [include-cleaner] rename enabled flags to `disable-*` (PR #132991)

[Aaron Ballman via cfe-commits]

https://github.com/AaronBallman commented:

Do we need a deprecation period for this change? This will break anyone using the old names in scripts and whatnot.

Also, the changes will need something in the release notes so users know about the new names.

https://github.com/llvm/llvm-project/pull/132991