adds the missing slash in cargo path (#13424) (#13427)

(cherry picked from commit 44b12a1594)

Co-authored-by: behzad nouri <behzadnouri@gmail.com>

scripts/cargo-install-all.sh

@@ -3,7 +3,7 @@
 # |cargo install| of the top-level crate will not install binaries for
 # other workspace crates or native program crates.
 here="$(dirname "$0")"
-cargo="$(readlink -f "${here}../cargo")"
+cargo="$(readlink -f "${here}/../cargo")"
 
 set -e