feat(outputs.azure_data_explorer): Add AppName in connector details

[asaharn]

Summary

Adding App name will help to identify the source plugin of incoming telemetry data eg. Kusto or Microsoft Fabric (upcoming plugin by Microsoft).

Checklist

• No AI generated code was used in this PR

Related issues

resolves #16101

[telegraf-tiger]

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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

[srebhan]

@asaharn it seems to me as if the AppName is a new setting for the config. If so, you must also add a toml tag and adapt the sample.conf to document the new setting...

[asaharn]

Hi @srebhan, the AppName is restricted to be only accessible internally at telegraf plugin level. This will help us in monitoring the usage telemetry, to differentiate between usage of ADX output plugin. 1) Native Output plugin i.e. "Kusto.Telegraf" or 2) Microsoft Fabric output plugin, i.e. "Fabric.Telegraf" (an upcoming output plugin)

Please note that we will raise the PR for MS Fabric right after this PR gets merged as the changes are ready.