RSE-321: Fix: ERROR while running a dir command in a path with Japanese files

[L2JE]

Ticket: https://pagerduty.atlassian.net/browse/RSE-321

Problem

Steps to Reproduce:

1. Deploy a windows 12 japanese version
2. Create fail.wsf file that has a runtime error like dividing by zero.
3. Setup winrm on the node and pywinrm dependancies on rundeck
4. Add the windows machine as a rundeck node

node_win_xmpl:
  nodename: node_win_xmpl
  hostname: 127.0.0.1
  osArch: amd64
  username: Administrator
  osFamily: windows
  node-executor: WinRMPython
  file-copier: WinRMcpPython
  winrm-password-storage-path: keys/windows/winrm-admin.password
  output-charset: 'shift_jis'

5. From the command tab, run the script with: dir C:\
6. See job failing with no logs showing a reason
   

Solution

• Use utf-8 as an internal default charset to try printing any output that couldn't be decoded using the defined node's output-charset.
• Handle exceptions and log them as error to let the user know why and where any error occurred.

[robotarmy]

<3 <3 <3 <3

[ronaveva]

LGTM