Auto-update dependencies (#2298)

Produced via:
  `./hack/update-deps.sh --upgrade && ./hack/update-codegen.sh`
/assign dprotaso grantr samodell
/cc dprotaso grantr samodell

Gopkg.lock

@@ -465,14 +465,14 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:dd8432987142e8a917e58bac0137c287f54399fa68b0760936d52dce04eb639b"
+  digest = "1:e5bd21467544cbd14cb25553c5c78eb2e0e93baf9288a3c2ebaf1cf1fdb0c95f"
   name = "knative.dev/test-infra"
   packages = [
     "scripts",
     "tools/dep-collector",
   ]
   pruneopts = "UT"
-  revision = "0c681e1f1df96322a62976d05d0add50bd50632e"
+  revision = "71f886c808ce483867a28ca2b47e843916a72b44"
 
 [solve-meta]
   analyzer-name = "dep"

vendor/knative.dev/test-infra/scripts/release.sh

@@ -498,9 +498,30 @@ function publish_artifacts() {
 
 # Entry point for a release script.
 function main() {
+  parse_flags "$@"
+
+  # Checkout specific branch, if necessary
+  local current_branch
+  current_branch="$(git rev-parse --abbrev-ref HEAD)"
+  if [[ -n "${RELEASE_BRANCH}" && -z "${FROM_NIGHTLY_RELEASE}" && "${current_branch}" != "${RELEASE_BRANCH}" ]]; then
+    setup_upstream
+    setup_branch
+    # When it runs in Prow, the origin is identical with upstream, and previous
+    # fetch already fetched release-* branches, so no need to `checkout -b`
+    if (( IS_PROW )); then
+      git checkout "${RELEASE_BRANCH}" || abort "cannot checkout branch ${RELEASE_BRANCH}"
+    else
+      git checkout -b "${RELEASE_BRANCH}" upstream/"${RELEASE_BRANCH}" || abort "cannot checkout branch ${RELEASE_BRANCH}"
+    fi
+    # HACK HACK HACK
+    # Rerun the release script from the release branch. Fixes https://github.com/knative/test-infra/issues/1262
+    ./hack/release.sh "$@"
+    exit "$?"
+  fi
+
   function_exists build_release || abort "function 'build_release()' not defined"
   [[ -x ${VALIDATION_TESTS} ]] || abort "test script '${VALIDATION_TESTS}' doesn't exist"
-  parse_flags "$@"
+
   # Log what will be done and where.
   banner "Release configuration"
   if which gcloud &>/dev/null ; then
@@ -533,13 +554,6 @@ function main() {
   fi
   [[ -n "${RELEASE_NOTES}" ]] && echo "- Release notes are generated from '${RELEASE_NOTES}'"
 
-  # Checkout specific branch, if necessary
-  if [[ -n "${RELEASE_BRANCH}" && -z "${FROM_NIGHTLY_RELEASE}" ]]; then
-    setup_upstream
-    setup_branch
-    git checkout upstream/${RELEASE_BRANCH} || abort "cannot checkout branch ${RELEASE_BRANCH}"
-  fi
-
   if [[ -n "${FROM_NIGHTLY_RELEASE}" ]]; then
     build_from_nightly_release
   else