fix(cli): document -C in the local CLI help

Author: fengmk2

crates/vite_cli_snapshots/tests/cli_snapshots/fixtures/cli_helper_message/snapshots/cli_helper_message_local.md

@@ -30,6 +30,7 @@ Package Manager Commands:
   install    Install all dependencies, or add packages if package names are provided
 
 Options:
+  -C <DIR>    Run as if vp was started in <DIR> instead of the current working directory
   -h, --help  Print help
 ```
 

crates/vite_cli_snapshots/tests/cli_snapshots/fixtures/vp_help/snapshots/help.local.md

@@ -30,5 +30,6 @@ Package Manager Commands:
   install    Install all dependencies, or add packages if package names are provided
 
 Options:
+  -C <DIR>    Run as if vp was started in <DIR> instead of the current working directory
   -h, --help  Print help
 ```

packages/cli/binding/src/cli/help.rs

@@ -201,6 +201,7 @@ pub(super) fn print_help() {
   {bold}install{reset}    Install all dependencies, or add packages if package names are provided
 
 Options:
+  -C <DIR>    Run as if vp was started in <DIR> instead of the current working directory
   -h, --help  Print help"
     );
 }

packages/cli/snap-tests/command-helper/snap.txt

@@ -22,6 +22,7 @@ Package Manager Commands:
   install    Install all dependencies, or add packages if package names are provided
 
 Options:
+  -C <DIR>    Run as if vp was started in <DIR> instead of the current working directory
   -h, --help  Print help
 
 > vp pack -h # pack help message

packages/cli/snap-tests/command-vp-alias/snap.txt

@@ -22,6 +22,7 @@ Package Manager Commands:
   install    Install all dependencies, or add packages if package names are provided
 
 Options:
+  -C <DIR>    Run as if vp was started in <DIR> instead of the current working directory
   -h, --help  Print help
 
 > vp run -h # vp run should show help