Update net-contour nightly (#13171)
Update net-contour nightly (#13171)

bumping knative.dev/net-contour 0566e17...8f605ff:
  > 8f605ff fix the release script (# 791)
  > ef3ceca Update community files (# 792)
  > 4bc95a6 upgrade to latest dependencies (# 790)
  > 53ad6b3 upgrade to latest dependencies (# 788)
  > 62b6b2d bump go.mod to v1.18 (# 789)
  > 3bc42c8 upgrade to latest dependencies (# 786)
  > 4e8d526 Bump Go version to 1.18 for CI (# 787)
  > 023772c drop use of the operator (# 782)
  > 363705d drop git info from kodata (# 783)

Signed-off-by: Knative Automation <f415700d4d0ce1c81810fe7553e3eea2bed16231@knative.team>
knative/serving,knative/serving