[master] Auto-update dependencies (#1188)

Produced via:
  `./hack/update-deps.sh --upgrade && ./hack/update-codegen.sh`
/assign n3wscott vagababov
/cc n3wscott vagababov

Gopkg.lock

@@ -1362,14 +1362,14 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:5da0f15efcd7dafa6296be9cd4a630fcb5253cf202e54638299221ae7df419ab"
+  digest = "1:d8858077778bca77705b26d5b5262bf33a6bfbaa701fffca1578fd7ef4c4b975"
   name = "knative.dev/test-infra"
   packages = [
     "scripts",
     "tools/dep-collector",
   ]
   pruneopts = "UT"
-  revision = "5bdfbd623938f0cc4a260bf06c503bbb0a76d6f9"
+  revision = "cdec09517ea85b37691ab4a81ee85d74e7e91b7e"
 
 [[projects]]
   digest = "1:8730e0150dfb2b7e173890c8b9868e7a273082ef8e39f4940e3506a481cf895c"

vendor/knative.dev/test-infra/scripts/presubmit-tests.sh

@@ -177,11 +177,12 @@ function default_build_test_runner() {
     # Consider an error message everything that's not a package name.
     errors_go1="$(grep -v '^\(github\.com\|knative\.dev\)/' "${report}" | sort | uniq)"
   fi
-  # Get all build tags in go code (ignore /vendor)
+  # Get all build tags in go code (ignore /vendor and /hack)
   local tags="$(grep -r '// +build' . \
-      | grep -v '^./vendor/' | cut -f3 -d' ' | sort | uniq | tr '\n' ' ')"
+      | grep -v '^./vendor/' | grep -v '^./hack/' | cut -f3 -d' ' | sort | uniq | tr '\n' ' ')"
   local tagged_pkgs="$(grep -r '// +build' . \
-    | grep -v '^./vendor/' | grep ":// +build " | cut -f1 -d: | xargs dirname | sort | uniq | tr '\n' ' ')"
+    | grep -v '^./vendor/' | grep -v '^./hack/' | grep ":// +build " | cut -f1 -d: | xargs dirname \
+    | sort | uniq | tr '\n' ' ')"
   for pkg in ${tagged_pkgs}; do
     # `go test -c` lets us compile the tests but do not run them.
     if ! capture_output "${report}" go test -c -tags="${tags}" ${pkg} ; then