build: bump shadow to 0.10.0 & git2 to 0.14.2 (#3767)

src/main.rs

@@ -13,16 +13,11 @@ use starship::context::{Properties, Target};
 use starship::module::ALL_MODULES;
 use starship::*;
 
-fn long_version() -> &'static str {
-    let ver = Box::new(crate::shadow::clap_long_version());
-    Box::leak(ver).as_str()
-}
-
 #[derive(Parser, Debug)]
 #[clap(
     author=crate_authors!(),
     version=shadow::PKG_VERSION,
-    long_version=long_version(),
+    long_version=shadow::CLAP_LONG_VERSION,
     about="The cross-shell prompt for astronauts. ☄🌌️",
     subcommand_required=true,
     arg_required_else_help=true,