Update github.com/arduino/arduino-cli dependency version

This is necessary to receive the fix for a bug that caused libraries.Library.SourceHeaders() to not reflect the actual
source headers of the library.

Author: per1234

go.mod

@@ -3,7 +3,7 @@ module github.com/arduino/arduino-check
 go 1.14
 
 require (
-	github.com/arduino/arduino-cli v0.0.0-20200922073731-53e3230c4f71
+	github.com/arduino/arduino-cli v0.0.0-20201124150942-8d026eddbfb4
 	github.com/arduino/go-paths-helper v1.3.2
 	github.com/arduino/go-properties-orderedmap v1.4.0
 	github.com/client9/misspell v0.3.4