add some library (#6813)

* Add some DFRobot libraries

* Update repositories.txt add MHZ9041A library

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Co-authored-by: 吴潇 <[email protected]>

Author: 96liuzhixin

repositories.txt

@@ -2326,6 +2326,7 @@ https://github.com/DFRobot/DFRobot_VL6180X
 https://github.com/DFRobot/DFRobot_VoiceRecorder
 https://github.com/DFRobot/DFRobotDFPlayerMini
 https://github.com/DFRobot/DFRobotIRPosition
+https://github.com/DFRobot/DFRobot_MHZ9041A
 https://github.com/dgduncan/Arduino-MCP4131
 https://github.com/dgduncan/SevenSegment
 https://github.com/Dhanabhon/TomIBT2