bash -> sh: some OSes do not have bash

Signed-off-by: Stephan Mueller <smueller@chronox.de>

Author: smuellerDD

apps/tests/convert_tester.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 #
 # Written by Stephan Mueller <smueller@chronox.de>
 #

apps/tests/csr_tester.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 #
 # Written by Stephan Mueller <smueller@chronox.de>
 #

apps/tests/hasher-test.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 #
 # Copyright (C) 2017 - 2026, Stephan Mueller <smueller@chronox.de>
 #

apps/tests/leancrypto_check_with_ietf.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 #
 # Written by Stephan Mueller <smueller@chronox.de>
 #

apps/tests/libtest.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 #
 # Copyright (C) 2017 - 2026, Stephan Mueller <smueller@chronox.de>
 #

apps/tests/rfc9882_test.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 #
 # Written by Stephan Mueller <smueller@chronox.de>
 #

apps/tests/sbattach_test.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 #
 # Written by Stephan Mueller <smueller@chronox.de>
 #

apps/tests/sbsiglist_test.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 #
 # Written by Stephan Mueller <smueller@chronox.de>
 #

apps/tests/sbsign_test.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 #
 # Written by Stephan Mueller <smueller@chronox.de>
 #

apps/tests/sbvarsign_test.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 #
 # Written by Stephan Mueller <smueller@chronox.de>
 #