Add GH release for the Splunk OTel .NET Deployer TA (#6129) #12800

Job	Run time
setup-environment	1m 53s
gofmt	5m 38s
generate-metrics	5m 49s
tidy	2m 1s
coverage	11m 54s
lint	17m 7s
test	16m 20s
cross-compile (binaries-darwin_amd64)	5m 11s
cross-compile (binaries-darwin_arm64)	5m 15s
cross-compile (binaries-linux_amd64)	5m 23s
cross-compile (binaries-linux_arm64)	5m 9s
cross-compile (binaries-windows_amd64)	5m 19s
cross-compile (binaries-linux_ppc64le)	5m 7s
	1h 32m 6s

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