'install.sh' fails in attempt to inflate '.zip' file using 'tar'.

[HansLindkvist]

Bug Report

'install.sh' fails in attempt to inflate '.zip' file using 'tar'.

Current behavior

curl -fsSL https://raw.githubusercontent.com/arduino/arduino-cli/master/install.sh | BINDIR=~/bin sh

......
Downloading https://downloads.arduino.cc/arduino-cli/arduino-cli_0.6.0_Windows_64bit.zip
tar: This does not look like a tar archive
tar: Skipping to next header
tar: Exiting with failure status due to previous errors
Failed to install arduino-cli

Expected behavior

......
Downloading https://downloads.arduino.cc/arduino-cli/arduino-cli_0.6.0_Windows_64bit.zip
Archive: /tmp/arduino-cli_0.6.0_Windows_64bit.zip
inflating: /tmp/arduino-cli/LICENSE.txt
inflating: /tmp/arduino-cli/README.md
inflating: /tmp/arduino-cli/arduino-cli.exe
arduino-cli.exe Version: 0.6.0 Commit: 3a08b07 installed successfully in /c/Users/Hans/bin

Environment

• CLI version (output of arduino-cli version): arduino-cli.exe Version: 0.6.0 Commit: 3a08b07
• OS and platform: MINGW64_NT-10.0-18363

Additional context

Patch:

156c156,160
< 	tar xf "$CLI_TMP_FILE" -C "$CLI_TMP"
---
> 	if [ "$OS" = "Windows" ]; then
> 		unzip -d "$CLI_TMP" "$CLI_TMP_FILE"
> 	else
> 		tar xf "$CLI_TMP_FILE" -C "$CLI_TMP"
> 	fi