Update repositories.txt

[sagar-koirala]

Added library for tello drone control using esp32 devices

[github-actions]

Arduino Lint has suggestions for possible improvements to https://github.com/sagar-koirala/TelloESP32:

Linting library in TelloESP32
WARNING: library.properties depends field item(s) WiFiUdp not found in the Library Manager index.              
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format
         (Rule LP048)                                                                                          

Linter results for project: 0 ERRORS, 1 WARNINGS

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

Linting sketch in TelloESP32/examples/BasicConnection

Linter results for project: no errors or warnings

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

Linting sketch in TelloESP32/examples/BasicMovement

Linter results for project: no errors or warnings

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

Linting sketch in TelloESP32/examples/GetDroneState

Linter results for project: no errors or warnings

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

Linting sketch in TelloESP32/examples/InteractiveFlightControl

Linter results for project: no errors or warnings

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

Linting sketch in TelloESP32/examples/QueryDroneState

Linter results for project: no errors or warnings

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

Linting sketch in TelloESP32/examples/VideoStream

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/sagar-koirala/TelloESP32/