Add Docker Secrets Support for Database Password & fixed missing boto3 dependency in tests (#1657)

* Added overrider to use docker secrets for mariadb password

* typo in overrider file name

* typo in overrider mariadb-secrets

* typo in overriider mariadb-secrets

* Secrets enviroment variable override

* secrets need different enviroment variable name

* no - for env variables

* Updated deprecated MinIO Env Variables

* refactored to be more robust and better error handling

* temprary debugging changes

* Revert "temprary debugging changes"

This reverts commit d01931064d.

* Revert "refactored to be more robust and better error handling"

This reverts commit fe508668a8.

* Revert "Updated deprecated MinIO Env Variables"

This reverts commit 76e66b5262.

* manually added boto3 before running _create_bucket

* lint formatting

example.env

@@ -4,6 +4,9 @@ ERPNEXT_VERSION=v15.70.2
 
 DB_PASSWORD=123
 
+#Only if you use docker secrets for the db password
+DB_PASSWORD_SECRETS_FILE=
+
 # Only if you use external database
 DB_HOST=
 DB_PORT=