Feature request: corepack exec

Hi,

This feature request is not exactly the same than the one mentioned in #57. As introduced in the docs here, command corepack <binary name>[@<version>] [... args] allows to execute a package manager of our choice with custom arguments. This command checks whether the local project is configured for the given package manager.

I personnally would be interested with a command such as corepack exec [... args] (exec may not be the most relevant term however), that would take the exact release set in the packageManager property. I guess it is possible because in the command above, I assume corepack parses property packageManager in the package.json file to verify consistency with <binary name>.
Thus, I could run a command of the package manager whatever it is, and without repeating the binary name. This may be useful in writing plugins/extensions for build tools such as Maven, Gradle, acting as a bridge to launch npm/pnpm/yarn commands, without having to parse the package.json file and discover the package manager.

Thanks in advance for your comments.
BR

Read the Corepack command documentation linked in the issue and inspect how the existing corepack <binary name>[@<version>] [... args] entry point handles the packageManager property in package.json. Define the command name and selection behavior, then verify that it forwards arbitrary arguments to the configured package manager without requiring callers to parse package.json.