final cleanup when shell exceution fails

    tasks:
    - name: task
      task:
      - func: shell
        desc: |
          task fails
        do:
        - echo "open a file ....."
        - echo "reading the file" |grep "cause an exception"
        finally: close_file
      - func: cmd
        desc: step 2
        do:
        - name: print
          cmd: step 2
    - name: close_file
      task:
      - func: shell
        name: close_file
        desc: |
          ensure the opened file is closed
        do:
        - echo "close the file ....."
    

    loading [Config]:  ./tests/functests/upconfig.yml
    Main config:
                 Version -> 1.0.0
                  RefDir -> ./tests/functests
                 WorkDir -> cwd
              AbsWorkDir -> /up_project/up
                TaskFile -> f0171
                 Verbose -> vvv
              ModuleName -> self
               ShellType -> /bin/sh
           MaxCallLayers -> 8
                 Timeout -> 3600000
     MaxModuelCallLayers -> 256
               EntryTask -> task
      ModRepoUsernameRef -> 
      ModRepoPasswordRef -> 
    work dir: /up_project/up
    -exec task: task
    loading [Task]:  ./tests/functests/f0171
    module: [self], instance id: [dev], exec profile: []
    profile -  envVars:
    
    (*core.Cache)({
    })
    
    Task1: [task ==> task:  ]
    -Step1: [
    task fails
    ]
    self: final context exec vars:
    
    (*core.Cache)({
      "up_runtime_task_layer_number": 0
    })
    
    cmd( 1):
    echo "open a file ....."
    
    -
    open a file .....
    
    -
     .. ok
    cmd( 2):
    echo "reading the file" |grep "cause an exception"
    
    -
    
    -
     .. failed(suppressed if it is not the last step)
    Step Finally:
    =Task2: [task ==> close_file:  ]
    --Step1: [
    close_fileensure the opened file is closed
    ]
    self: final context exec vars:
    
    (*core.Cache)({
      "up_runtime_shell_exec_result": (*utils.ExecResult)({
        Cmd: "echo \"reading the file\" |grep \"cause an exception\"",
        Code: 1,
        Output: "",
        ErrMsg: "exit status 1"
      }),
      "up_runtime_task_layer_number": 1
    })
    
    cmd( 1):
    echo "close the file ....."
    
    -
    close the file .....
    
    -
     .. ok
    . ok
     WARN: [Not rescued in task level] - [please assess the panic problem and cause, fix it before re-run the task]
    task finally ->   ERROR: Failed And Not Ignored! [You may want to continue and ignore the error]