Add M5Unit-Fingerprint2 to repositories.txt

[onexs-xsi]

No description provided.

[github-actions]

Arduino Lint has suggestions for possible improvements to https://github.com/m5stack/M5Unit-Fingerprint2:

Linting library in M5Unit-Fingerprint2
INFO: No header file found matching library name (M5Unit-Fingerprint2-Library.h). Best practices are for primary header 
      filename to match library name.                                                                                   
      See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format            
      (Rule LS008)                                                                                                      
WARNING: Library name M5Unit-Fingerprint2-Library contains "library". This is superfluous.                     
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format
         (Rule LP016)                                                                                          

Linter results for project: 0 ERRORS, 1 WARNINGS

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Linting sketch in M5Unit-Fingerprint2/examples/Functional_Testing

Linter results for project: no errors or warnings

-------------------

Linter results for projects: 0 ERRORS, 1 WARNINGS

[github-actions]

Your submission has now been accepted! Thanks for your contribution to the Arduino Library Manager index.

The library(s) will be available for installation via Library Manager within a day's time.

You can check the logs from the Library Manager indexer for your library(s) here:
http://downloads.arduino.cc/libraries/logs/github.com/m5stack/M5Unit-Fingerprint2/

[onexs-xsi]

@ArduinoBot Rebuild tag 1.3.0 index identifier