Update oauthenticator from 16.1.1 to 16.2.0, kubespawner from 6.1.0 to 6.2.0, and kubernetes-asyncio from 27.6.0 to 28.2.1 #2104

Job	Run time
lint_and_validate_rendered_templates	11s
lint_and_validate_rendered_templates	11s
lint_shell_scripts	48s
lint_shell_scripts	48s
lint_and_validate_templates_with_schema	10s
lint_and_validate_templates_with_schema	10s
lint_and_validate_templates_with_schema (v3.5.0)	10s
lint_and_validate_templates_with_schema (v3.5.0)	10s
test (latest, install)	1m 22s
test (latest, install)	3m 36s
test (stable, install, --set hub.image.name=quay.io/jupyterhub/k8s-hub-slim --set prePuller.hook....	1m 28s
test (stable, install, --set hub.image.name=quay.io/jupyterhub/k8s-hub-slim --set prePuller.hook....	3m 36s
test (v1.26, install, --set hub.existingSecret=test-hub-existing-secret --set proxy.secretToken=a...	1m 26s
test (v1.26, install, --set hub.existingSecret=test-hub-existing-secret --set proxy.secretToken=a...	3m 33s
test (v1.25, upgrade, stable, --set proxy.secretToken=aaaa1111 --set hub.cookieSecret=bbbb2222 --...	4m 20s
test (v1.25, upgrade, stable, --set proxy.secretToken=aaaa1111 --set hub.cookieSecret=bbbb2222 --...	4m 20s
test (v1.24, upgrade, dev, --set proxy.secretToken=aaaa1111 --set hub.db.type=sqlite-pvc --set si...	4m 17s
test (v1.24, upgrade, dev, --set proxy.secretToken=aaaa1111 --set hub.db.type=sqlite-pvc --set si...	4m 17s
test (v1.23, upgrade, 2.0.0, --set proxy.secretToken=aaaa1111 --set hub.cookieSecret=bbbb2222 --s...	4m 55s
test (v1.23, upgrade, 2.0.0, --set proxy.secretToken=aaaa1111 --set hub.cookieSecret=bbbb2222 --s...	4m 55s
	44m 43s

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