chore(scripts): use bash from path variable in shebang

Author: rubenhoenle

scripts/cd.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Immediate exit on failure
 set -e

scripts/helper.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Check if the directory is provided as an argument
 if [ $# -lt 1 ] || [ $# -gt 2 ]; then
@@ -45,4 +45,4 @@ elif [ "$2" = "-p" ] || [ "$2" = "--path-version" ]; then
 else
   echo "Invalid option: '$2'"
   exit 1
-fi
+fi