providers/oauth2: cleanup tokens when user is deactivated #27794

Job	Run time
lint-golint	45s
test-unittest	4m 31s
ci-outpost-mark	1s
build-container (proxy)	3m 12s
build-binary (proxy, linux, amd64)	1m 38s
build-container (ldap)	2m 44s
build-binary (proxy, linux, arm64)	2m 24s
build-container (radius)	3m 15s
build-binary (ldap, linux, amd64)	2m 7s
build-container (rac)	3m 8s
build-binary (ldap, linux, arm64)	1m 59s
build-binary (radius, linux, amd64)	2m 7s
build-binary (radius, linux, arm64)	1m 55s
build-binary (rac, linux, amd64)	1m 45s
build-binary (rac, linux, arm64)	2m 20s
	33m 51s

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