fix(install): Fetch before checkout to avoid errors

Author: lucasssvaz

Diff for: tools/install-arduino.sh

@@ -41,8 +41,8 @@ fi
 
 if [ "$AR_BRANCH" ]; then
 	echo "AR_BRANCH='$AR_BRANCH'"
+	git -C "$AR_COMPS/arduino" fetch --all && \
 	git -C "$AR_COMPS/arduino" checkout "$AR_BRANCH" && \
-	git -C "$AR_COMPS/arduino" fetch && \
 	git -C "$AR_COMPS/arduino" pull --ff-only
 fi
 if [ $? -ne 0 ]; then exit 1; fi