fix: Bash shebang

* fix: Bash shebang

src/config.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -Eeuo pipefail
 
 DEF_OPTS="-nographic -nodefaults -boot strict=on -display none"

src/cpu.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -Eeuo pipefail
 
 # Docker environment variables

src/gpu.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -Eeuo pipefail
 
 if [[ "$GPU" != [Yy1]* ]] || [[ "$ARCH" != "amd64" ]]; then

src/serial.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -Eeuo pipefail
 
 # Docker environment variables