feat(agent): Add uint support in cli test output

[Hipska]

Summary

I had a long time figuring out why the inputs.snmp.field conversion option of hextoint didn't work as expected. It turned out the value I tested with appears to be larger than MaxInt64 and thus only that value was returned.

Before:

> snmp,source=172.16.43.2 hextoint=9223372036854775807i 1717158016000000000

After:

> snmp,source=172.16.43.2 hextoint=9567906204395001025u 1717158016000000000

Checklist

• No AI generated code was used in this PR

Related issues

[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.

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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

[powersj]

I think this is fine to enable without modifying others output. Thanks

[srebhan]

Thanks @Hipska!