Improve Secret redaction for config File Logging

[MaxGosau]

Summary

Some Secrets in config files were not redacted during logging, this PR aims to fix this.

Issue

Some Secrets in config files were not redacted during logging, this had 2 causes:

1. password was not included in the REDACT_KEYS List but used in the updaterconfig for SIRI-ET via MQTT
2. JsonArrays were completely ignored during the recursive search for redactable keys, but JsonArrays are used for configuring the updaters.

I have fixed both issues.

Unit tests

• extracted the redaction Logic to its own class ConfigFileRedactor for better Testability
• wrote some unit tests for this new Class in ConfigFileRedactorTest

Documentation

Not needed for bugfix

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.41%. Comparing base (e4b3259) to head (4f43431).
⚠️ Report is 2 commits behind head on dev-2.x.

Additional details and impacted files

@@            Coverage Diff             @@
##             dev-2.x    #7560   +/-   ##
==========================================
  Coverage      72.41%   72.41%           
- Complexity     21183    21187    +4     
==========================================
  Files           2366     2367    +1     
  Lines          86237    86241    +4     
  Branches        8490     8492    +2     
==========================================
+ Hits           62446    62451    +5     
+ Misses         20795    20794    -1     
  Partials        2996     2996           

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