Correctly update IDE symlink

Because the ln command in install_ide_version was previously missing the --no-dereference option, only the first IDE version used (which is the newest IDE version installed) was ever used in any of the following processes.

Author: per1234

arduino-ci-script.sh

@@ -434,7 +434,7 @@ function install_ide_version()
   local -r IDEversion="$1"
 
   # Create a symbolic link so that the Arduino IDE can always be referenced from the same path no matter which version is being used.
-  ln --symbolic --force $ARDUINO_CI_SCRIPT_VERBOSITY_OPTION "${ARDUINO_CI_SCRIPT_APPLICATION_FOLDER}/arduino-${IDEversion}" "${ARDUINO_CI_SCRIPT_APPLICATION_FOLDER}/${ARDUINO_CI_SCRIPT_IDE_INSTALLATION_FOLDER}"
+  ln --symbolic --force --no-dereference $ARDUINO_CI_SCRIPT_VERBOSITY_OPTION "${ARDUINO_CI_SCRIPT_APPLICATION_FOLDER}/arduino-${IDEversion}" "${ARDUINO_CI_SCRIPT_APPLICATION_FOLDER}/${ARDUINO_CI_SCRIPT_IDE_INSTALLATION_FOLDER}"
 }