Tag v1.21.1 release.

Sunjay Bhatia (4):
      release-1.21: Bump Envoy to v1.22.1 (projectcontour#4568)
      release-1.21: Bump Envoy to 1.22.2 (projectcontour#4573)
      release-1.21: Cherrypicks for v1.21.1 (projectcontour#4575)
      Update Contour Docker image to v1.21.1.

Tero Saarni (1):
      Bump gopkg.in/yaml.v3 to address CVE-2022-28948 (projectcontour#4570)

Tag v1.20.2 release.

Sunjay Bhatia (3):
      release-1.20: Bump Envoy to v1.21.3 (projectcontour#4569)
      release-1.20: Cherrypicks for v1.20.2 (projectcontour#4576)
      Update Contour Docker image to v1.20.2.

Tero Saarni (1):
      Bump gopkg.in/yaml.v3 to address CVE-2022-28948 (projectcontour#4571)

Tag v1.21.0 release.

Steve Kriss (7):
      fix Gateway API hostname intersection logic (projectcontour#4505)
      Gateway API: update to v0.4.3, add validating webhook (projectcontour#4489)
      internal/dag: check routes for intersecting hostnames across all listeners (projectcontour#4512)
      move ContourConfiguration enum validation to controller (projectcontour#4511)
      v1.21.0 docs & changelog (projectcontour#4514)
      update quickstart and Gateway API guide (projectcontour#4501)
      Update Contour Docker image to v1.21.0.

Sunjay Bhatia (3):
      CI: Use specific prefix for image file name to find sha/tag (projectcontour#4502)
      Add query parameter hash policy (projectcontour#4508)
      Bump Go to 1.18.1 (projectcontour#4509)

Tero Saarni (1):
      cmd/contour: Add support for json log formatter (projectcontour#4486)

Update Contour Docker image to v1.21.0-rc.1. (projectcontour#4500)

Signed-off-by: Sunjay Bhatia <sunjayb@vmware.com>

Tag v1.20.1 release.

Steve Kriss (1):
      hack/actions: fix release image tag fetching (projectcontour#4311)

Sunjay Bhatia (2):
      Cherrypicks for Contour 1.20.1 (projectcontour#4369)
      Update Contour Docker image to v1.20.1.

Tag v1.20.0 release.

Tag v1.20.0-beta.1 release.

Steve Kriss (1):
      Update Contour Docker image to v1.20.0-beta.1.

Tag v1.18.3 release.

Nick Young (2):
      [Release 1.18] Cherry-pick: Allow retry policy, num retries to be zero (projectcontour#4174)
      Update Contour Docker image to v1.18.3.

Tag v1.19.1 release.

Steve Sloka (3):
      [Release 1-19] internal: Allow retry policy, num retries to be zero (projectcontour#4117) (projectcontour#4135)
      internal: Allow retry policy, num retries to be zero (projectcontour#4117)
      Update Contour Docker image to v1.19.1.

Sunjay Bhatia (1):
      [Release-1.19] Add test for root namespaces and fix panic (projectcontour#4112)

Tag v1.19.0 release.

Steve Sloka (1):
      Update Contour Docker image to v1.19.0.