fix(build): use /usr/bin/env bash instead of /bin/bash (#1020)

* fix: add to various other shell scripts

frontend/00-browsertrix-nginx-init.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # remove old config
 rm /etc/nginx/conf.d/default.conf

scripts/build-backend.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 CURR=$(dirname "${BASH_SOURCE[0]}")
 
 docker build -t ${REGISTRY}webrecorder/browsertrix-backend:latest $CURR/../backend/

scripts/build-frontend.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 CURR=$(dirname "${BASH_SOURCE[0]}")
 
 docker build --build-arg GIT_COMMIT_HASH="$(git rev-parse --short HEAD)" --build-arg GIT_BRANCH_NAME="$(git rev-parse --abbrev-ref HEAD)" --build-arg --load -t ${REGISTRY}webrecorder/browsertrix-frontend:latest  $CURR/../frontend/

test/setup.sh

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

update-version.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 version=`cat version.txt`
 jq ".version=\"$version\"" ./frontend/package.json > ./tmp-package.json