Fix: key ID not being set correctly in keyshare JWTs #806

Job	Run time
docker-build	41s
lint	59s
build (linux, amd64)	30s
test	5m 47s
build (linux, 386)	30s
build (linux, arm)	36s
build (linux, arm64)	35s
build (darwin, amd64)	35s
build (darwin, arm64)	30s
build (windows, amd64)	37s
build (windows, 386)	28s
build (windows, arm)	30s
build (windows, arm64)	29s
integration-test-serverside (f0023141ec429d912e329665f937d05b178a3fee)	1m 49s
integration-test-clientside (v0.13.2)	2m 7s
analyze	1m 46s
	18m 29s

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