taTaking Information Account from crendential.json file --> code more Secure and Generic

reports/credentials.tmpl.json

 {
-    "username": "admin",
-    "password": "XXXXXXXXXXXX"
+    "username": "ChirpstackMonitoring",
+    "password": "qX2bK6oN2iC1cQ5c"
 }
\ No newline at end of file

reports/generate_reports.sh

@@ -7,8 +7,8 @@
 # Generate the reports
 # ------------------------------------------------
 
-USERNAME=admin
-PASSWORD=XXXXXXXXXXXXXXXX
+USERNAME=$(jq --raw-output ".username" .credentials.json)
+PASSWORD=$(jq --raw-output ".password" .credentials.json)
 
 JWT=$(./get_jwt.sh $USERNAME $PASSWORD)