Bump k8s.io/apimachinery from 0.20.3 to 0.20.4

Bumps [k8s.io/apimachinery](https://github.com/kubernetes/apimachinery) from 0.20.3 to 0.20.4.
- [Release notes](https://github.com/kubernetes/apimachinery/releases)
- [Commits](kubernetes/apimachinery@v0.20.3...v0.20.4)

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -17,7 +17,7 @@ require (
 	golang.org/x/net v0.0.0-20201202161906-c7110b5ffcbb
 	gopkg.in/ini.v1 v1.62.0
 	k8s.io/api v0.20.2
-	k8s.io/apimachinery v0.20.3
+	k8s.io/apimachinery v0.20.4
 	k8s.io/client-go v0.20.2
 	k8s.io/utils v0.0.0-20210111153108-fddb29f9d009
 	sigs.k8s.io/controller-runtime v0.8.2

go.sum

@@ -1224,8 +1224,8 @@ k8s.io/apimachinery v0.20.1 h1:LAhz8pKbgR8tUwn7boK+b2HZdt7MiTu2mkYtFMUjTRQ=
 k8s.io/apimachinery v0.20.1/go.mod h1:WlLqWAHZGg07AeltaI0MV5uk1Omp8xaN0JGLY6gkRpU=
 k8s.io/apimachinery v0.20.2 h1:hFx6Sbt1oG0n6DZ+g4bFt5f6BoMkOjKWsQFu077M3Vg=
 k8s.io/apimachinery v0.20.2/go.mod h1:WlLqWAHZGg07AeltaI0MV5uk1Omp8xaN0JGLY6gkRpU=
-k8s.io/apimachinery v0.20.3 h1:P0heYNTI2km9gTUAb0PX5qRd8oHAaesICvkg13k97y4=
-k8s.io/apimachinery v0.20.3/go.mod h1:WlLqWAHZGg07AeltaI0MV5uk1Omp8xaN0JGLY6gkRpU=
+k8s.io/apimachinery v0.20.4 h1:vhxQ0PPUUU2Ns1b9r4/UFp13UPs8cw2iOoTjnY9faa0=
+k8s.io/apimachinery v0.20.4/go.mod h1:WlLqWAHZGg07AeltaI0MV5uk1Omp8xaN0JGLY6gkRpU=
 k8s.io/apiserver v0.0.0-20190918160949-bfa5e2e684ad/go.mod h1:XPCXEwhjaFN29a8NldXA901ElnKeKLrLtREO9ZhFyhg=
 k8s.io/apiserver v0.18.2/go.mod h1:Xbh066NqrZO8cbsoenCwyDJ1OSi8Ag8I2lezeHxzwzw=
 k8s.io/apiserver v0.20.1/go.mod h1:ro5QHeQkgMS7ZGpvf4tSMx6bBOgPfE+f52KwvXfScaU=