Update repositories.txt

[katsuyoshi]

Add irboard_esp32

[github-actions]

Arduino Lint has suggestions for possible improvements to https://github.com/ito-soft-design/irboard_esp32:

Linting library in irboard_esp32
INFO: No header file found matching library name (irBoard_Library_for_ESP32.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.properties name value irBoard Library for ESP32 is longer than the recommended length of 16 characters.
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format         
         (Rule LP010)                                                                                                   
WARNING: library.properties name irBoard Library for ESP32 contains spaces. Although supported, best practices is to not
         use spaces.                                                                                                    
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format         
         (Rule LP015)                                                                                                   
WARNING: Library name irBoard Library for ESP32 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, 3 WARNINGS

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

Linting sketch in irboard_esp32/examples/irboard_m5atom

Linter results for project: no errors or warnings

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

Linting sketch in irboard_esp32/examples/irboard_m5stack

Linter results for project: no errors or warnings

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

Linting sketch in irboard_esp32/examples/irboard_m5stickc

Linter results for project: no errors or warnings

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

Linter results for projects: 0 ERRORS, 3 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/ito-soft-design/irboard_esp32/