Update gopsutil: fix procstat performance regression #8210
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ssoroka
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ssoroka
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arstercz
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This gopsutil update addresses a performance regression where getting stats for a process would read many files to check whether the program is running under virtualization. In telegraf this would happen for every process running on the system on every collection interval causing excessive cpu usage. The update changes gopsutil to only check for virtualization once. See shirou/gopsutil#942
closes #7811
closes #7884
closes #7883