Update repositories.txt

[ErlTechnologies]

i add new example code and update version

[github-actions]

❌ ERROR: Arduino Lint found errors with https://github.com/ErlTechnologies/ERLtech_Robotcontrol.git:

Linting library in ERLtech_Robotcontrol
ERROR: Library name BTRobocontrol is in use by a library in the Library Manager index. Each library must have a unique  
       name value. If your library is already in the index, use the "--library-manager update" flag.                    
       See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format           
       (Rule LP017)                                                                                                     

Linter results for project: 1 ERRORS, 0 WARNINGS

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

Linting sketch in ERLtech_Robotcontrol/examples/BTRobocontrol

Linter results for project: no errors or warnings

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

Linting sketch in ERLtech_Robotcontrol/examples/Voice_control_robot

Linter results for project: no errors or warnings

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

Linter results for projects: 1 ERRORS, 0 WARNINGS

[github-actions]

Thanks for your interest in contributing to the Arduino Library Manager index @ErlTechnologies
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