Update URL of "EByte RF E70 library" in repositories.txt

[per1234]

Per request at #4033 (comment)

[github-actions]

Hi @per1234.
Your pull request has been detected as something other than a Library Manager submission.
A maintainer will need to review it before it can be merged.

If you intended to submit a library, please check the instructions and update your pull request if necessary:
https://github.com/arduino/library-registry/blob/main/README.md#instructions

[github-actions]

❌ ERROR: Arduino Lint found errors with https://github.com/xreef/EByte_RF_E70_Series_Library:

Linting library in EByte_RF_E70_Series_Library
WARNING: library.properties name value EByte RF E70 library 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 EByte RF E70 library 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 EByte RF E70 library contains "library". This is superfluous.                            
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format
         (Rule LP016)                                                                                          
ERROR: Library name EByte RF E70 library not found in the Library Manager index. Library names are not allowed to change
       after being added to the index.                                                                                  
       See: https://github.com/arduino/library-registry/blob/main/FAQ.md#how-can-i-change-a-librarys-name               
       (Rule LP018)                                                                                                     
WARNING: Unable to load the library.properties url field: 404 Not Found                                        
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format
         (Rule LP042)                                                                                          

Linter results for project: 1 ERRORS, 4 WARNINGS

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

Linting sketch in EByte_RF_E70_Series_Library/examples/01_getConfiguration

Linter results for project: no errors or warnings

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

Linting sketch in EByte_RF_E70_Series_Library/examples/01_setConfiguration

Linter results for project: no errors or warnings

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

Linting sketch in EByte_RF_E70_Series_Library/examples/02_sendTransparentTransmission

Linter results for project: no errors or warnings

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

Linting sketch in EByte_RF_E70_Series_Library/examples/04_sendFixedTransmission

Linter results for project: no errors or warnings

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

Linting sketch in EByte_RF_E70_Series_Library/examples/05_sendFixedTransmissionStructure

Linter results for project: no errors or warnings

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

Linting sketch in EByte_RF_E70_Series_Library/examples/05_sendFixedTransmissionStructureReadPartial

Linter results for project: no errors or warnings

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

Linting sketch in EByte_RF_E70_Series_Library/examples/06_wakeUPLoRaFromWOR

Linter results for project: no errors or warnings

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

Linting sketch in EByte_RF_E70_Series_Library/examples/07_receiveMessages

Linter results for project: no errors or warnings

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

Linting sketch in EByte_RF_E70_Series_Library/examples/07_sendBroadcastMessage

Linter results for project: no errors or warnings

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

Linter results for projects: 1 ERRORS, 4 WARNINGS

[github-actions]

Thanks for your interest in contributing to the Arduino Library Manager index @per1234
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