Update repositories.txt

[LeonieFierz]

Adding Sensirion libraries for SHT3x, STS3x and SFM-SF06 sensors

[github-actions]

Arduino Lint has suggestions for possible improvements to https://github.com/Sensirion/arduino-i2c-sfm-sf06:

Linting library in arduino-i2c-sfm-sf06
INFO: No header file found matching library name (Sensirion_I2C_SFM-SF06.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 Sensirion I2C SFM-SF06 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 Sensirion I2C SFM-SF06 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)                                                                                                   

Linter results for project: 0 ERRORS, 2 WARNINGS

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

Linting sketch in arduino-i2c-sfm-sf06/examples/exampleUsage

Linter results for project: no errors or warnings

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

Linter results for projects: 0 ERRORS, 2 WARNINGS

[github-actions]

Arduino Lint has suggestions for possible improvements to https://github.com/Sensirion/arduino-i2c-sts3x:

Linting library in arduino-i2c-sts3x
WARNING: library.properties name value SensirionI2cSts3x is longer than the recommended length of 16 characters.
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format 
         (Rule LP010)                                                                                           

Linter results for project: 0 ERRORS, 1 WARNINGS

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

Linting sketch in arduino-i2c-sts3x/examples/exampleUsage

Linter results for project: no errors or warnings

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

Linting sketch in arduino-i2c-sts3x/examples/exampleUsageSingleShot

Linter results for project: no errors or warnings

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

Linter results for projects: 0 ERRORS, 1 WARNINGS

[github-actions]

Arduino Lint has suggestions for possible improvements to https://github.com/Sensirion/arduino-i2c-sht3x:

Linting library in arduino-i2c-sht3x
WARNING: library.properties name value SensirionI2cSht3x is longer than the recommended length of 16 characters.
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format 
         (Rule LP010)                                                                                           

Linter results for project: 0 ERRORS, 1 WARNINGS

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

Linting sketch in arduino-i2c-sht3x/examples/exampleUsage

Linter results for project: no errors or warnings

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

Linting sketch in arduino-i2c-sht3x/examples/exampleUsageSingleShot

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/Sensirion/arduino-i2c-sfm-sf06/
http://downloads.arduino.cc/libraries/logs/github.com/Sensirion/arduino-i2c-sht3x/
http://downloads.arduino.cc/libraries/logs/github.com/Sensirion/arduino-i2c-sts3x/