Fix: Enabling username and passwords to be obfuscated

[HarryAnkers]

Description

Fixed the regex to obfuscate the redis username and password. Currently this regex only works on redis password when username is not provided.

Fixes # (issue)

Broken regex on redis url

Type of change

Please delete options that are not relevant.

• Documentation Change
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have run tests (pytest) that prove my fix is effective or that my feature works
• I have updated the CHANGELOG.md file accordingly
  None exists
• I have added tests that prove my fix is effective or that my feature works

[cjlapao]

@HarryAnkers thanks for the fix, merged