Update repositories.txt

[Mtalat]

Add 1NCE Arduino blueprint

[github-actions]

A problem was found with your submission https://github.com/1NCE-GmbH/blueprint_arduino

❌ ERROR: The repository has no tags. You need to create a release or tag that matches the version value in the library's library.properties file.

[github-actions]

Thanks for your interest in contributing to the Arduino Library Manager index @Mtalat
Please resolve the error(s) mentioned in the previous comment.

After resolving the issue, trigger this check again by doing one of the following:

• Commit the required change to the branch you submitted this pull request from.
• Comment here, mentioning @ArduinoBot in the comment.

❗ NOTE: It is not necessary to open a new pull request. ❗

More information:
https://github.com/arduino/library-registry/blob/main/README.md#if-the-problem-is-with-the-pull-request

[Mtalat]

@ArduinoBot

[github-actions]

Hello! I'm checking your submission again.

[github-actions]

Arduino Lint has suggestions for possible improvements to https://github.com/1NCE-GmbH/blueprint_arduino:

Linting library in blueprint_arduino
INFO: No header file found matching library name (1NCE_Arduino_Blueprint.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 1NCE Arduino Blueprint 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 name 1NCE Arduino Blueprint contains "Arduino". This is superfluous.                          
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format
         (Rule LP014)                                                                                          
WARNING: library.properties name 1NCE Arduino Blueprint 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, 3 WARNINGS

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

Linting sketch in blueprint_arduino/examples/nce_coap_demo

Linter results for project: no errors or warnings

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

Linting sketch in blueprint_arduino/examples/nce_lwm2m_demo

Linter results for project: no errors or warnings

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

Linting sketch in blueprint_arduino/examples/nce_udp_demo

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/1NCE-GmbH/blueprint_arduino/