Getting the build be MacOS friendly again

Author: Nikokolas3270

interceptor/test/e2e.sh

@@ -33,7 +33,7 @@ function test_interceptor {
       export PD_SIGNATURE=$override_signature
     fi
 
-    SIGN=$(echo -n "$PAYLOAD_BODY_FORMATTED" | sha256hmac -K $PD_SIGNATURE | tr -d "[:space:]-")
+    SIGN=$(echo -n "$PAYLOAD_BODY_FORMATTED" | openssl dgst -sha256 -hmac $PD_SIGNATURE | sed 's/^.* //')
 
     # Store the PID of the interceptor process
     INTERCEPTOR_PID=$!

test/generate_incident.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 
 # Define the mapping of alert names to titles