feat(inputs.proxmox): Add tag VM_ID to Proxmox plugin

[superdiego98]

Summary

Checklist

• No AI generated code was used in this PR

Related issues

resolves #16065

[srebhan]

First of all thank you very much for your contribution @superdiego98! Much appreciated!

However, we cannot add the tag unconditionally as this would create new "series" in some of the output plugins and thus might cause problems for some users! Could you please add a setting to the config where the user can specify which parts of vmstat they want to add as tags e.g.

  ## Additional tags of the VM stats data to add as a tag for example
  ## additional_vmstats_tags = ["vmid", "status"]
  # additional_vmstats_tags = []

What do you think?

[telegraf-tiger]

Download PR build artifacts for linux_amd64.tar.gz, darwin_arm64.tar.gz, and windows_amd64.zip.
Downloads for additional architectures and packages are available below.

👍 This pull request doesn't change the Telegraf binary size

📦 Click here to get additional PR build artifacts

Artifact URLs

DEB	RPM	TAR GZ	ZIP
amd64.deb	aarch64.rpm	darwin_amd64.tar.gz	windows_amd64.zip
arm64.deb	armel.rpm	darwin_arm64.tar.gz	windows_arm64.zip
armel.deb	armv6hl.rpm	freebsd_amd64.tar.gz	windows_i386.zip
armhf.deb	i386.rpm	freebsd_armv7.tar.gz
i386.deb	ppc64le.rpm	freebsd_i386.tar.gz
mips.deb	riscv64.rpm	linux_amd64.tar.gz
mipsel.deb	s390x.rpm	linux_arm64.tar.gz
ppc64el.deb	x86_64.rpm	linux_armel.tar.gz
riscv64.deb		linux_armhf.tar.gz
s390x.deb		linux_i386.tar.gz
		linux_mips.tar.gz
		linux_mipsel.tar.gz
		linux_ppc64le.tar.gz
		linux_riscv64.tar.gz
		linux_s390x.tar.gz

[superdiego98]

Hi,
i think this could be a great solution I can try to implement . Programming isn't my daily routine so i'm not sure if i could succeed but i'll try it!

[srebhan]

@superdiego98 let me know if you need help!