update gopsutil

[preetapan]

The library we used for stats collection has changed how windows stats collection works:
shirou/gopsutil#611

This will affect this code:
https://github.com/hashicorp/nomad/blob/master/client/stats/cpu_windows.go#L12

This issue captures updating gopsutil, as well as testing windows specific changes.

[onlyjob]

Note that shirou/gopsutil 2.19.05 introduced breaking change shirou/gopsutil@cae8efc as per shirou/gopsutil#676 that causes the following FTBFS in Nomad:

src/github.com/hashicorp/nomad/client/structs/structs.go 
codecgen error: error running 'go run codecgen-main-102.generated.go': exit status 2, console: # github.com/hashicorp/nomad/client/stats 
../stats/host.go:278:70: times.Stolen undefined (type "github.com/shirou/gopsutil/cpu".TimesStat has no field or method Stolen) 

src/github.com/hashicorp/nomad/client/structs/structs.go:3: running "codecgen": exit status 1 

The patch for Nomad is trivial but please review it nevertheless:

--- a/client/stats/host.go
+++ b/client/stats/host.go
@@ -274,9 +274,9 @@
        currentUser := times.User
        currentSystem := times.System
        currentTotal := times.Total()
        currentBusy := times.User + times.System + times.Nice + times.Iowait + times.Irq +
-               times.Softirq + times.Steal + times.Guest + times.GuestNice + times.Stolen
+               times.Softirq + times.Steal + times.Guest + times.GuestNice

        deltaTotal := currentTotal - h.prevTotal
        idle = ((currentIdle - h.prevIdle) / deltaTotal) * 100
        user = ((currentUser - h.prevUser) / deltaTotal) * 100

[tgross]

Closed by #7347

[github-actions]

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