Make it possible to run run scripts in nixos (#4913)

### Changes

- Use /usr/bin/env to select bash in scripts

###  Issues

#4864

configs/cardano/mainnet/download.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/usr/bin/env bash
 
 set -euo pipefail
 

configs/cardano/preprod/download.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/usr/bin/env bash
 
 set -euo pipefail
 

configs/cardano/preview/download.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/usr/bin/env bash
 
 set -euo pipefail
 

configs/cardano/private/download.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/usr/bin/env bash
 
 set -euo pipefail
 

configs/cardano/refresh.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/usr/bin/env bash
 
 set -euo pipefail
 

configs/cardano/sanchonet/download.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/usr/bin/env bash
 
 set -euo pipefail
 

run/common/docker/run.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/usr/bin/env bash
 
 # Enforce strict script execution modes
 set -euo pipefail

scripts/buildkite/main/attic-cache.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/usr/bin/env bash
 
 set -euox pipefail
 

scripts/buildkite/main/docker-build.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/usr/bin/env bash
 
 set -euox pipefail
 

test/e2e/fixtures/create-wallets.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/usr/bin/env bash
 
 set -euox pipefail