chore(deps): bump k8s.io/apimachinery from 0.20.2 to 0.20.4

Bumps [k8s.io/apimachinery](https://github.com/kubernetes/apimachinery) from 0.20.2 to 0.20.4.
- [Release notes](https://github.com/kubernetes/apimachinery/releases)
- [Commits](kubernetes/apimachinery@v0.20.2...v0.20.4)

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

go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/stretchr/testify v1.6.1
 	gopkg.in/alecthomas/kingpin.v2 v2.2.6
 	k8s.io/api v0.20.2
-	k8s.io/apimachinery v0.20.2
+	k8s.io/apimachinery v0.20.4
 	k8s.io/client-go v0.20.2
 	k8s.io/klog v1.0.0
 )

go.sum

@@ -739,6 +739,8 @@ k8s.io/api v0.20.2 h1:y/HR22XDZY3pniu9hIFDLpUCPq2w5eQ6aV/VFQ7uJMw=
 k8s.io/api v0.20.2/go.mod h1:d7n6Ehyzx+S+cE3VhTGfVNNqtGc/oL9DCdYYahlurV8=
 k8s.io/apimachinery v0.20.2 h1:hFx6Sbt1oG0n6DZ+g4bFt5f6BoMkOjKWsQFu077M3Vg=
 k8s.io/apimachinery v0.20.2/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/client-go v0.20.2 h1:uuf+iIAbfnCSw8IGAv/Rg0giM+2bOzHLOsbbrwrdhNQ=
 k8s.io/client-go v0.20.2/go.mod h1:kH5brqWqp7HDxUFKoEgiI4v8G1xzbe9giaCenUWJzgE=
 k8s.io/gengo v0.0.0-20200413195148-3a45101e95ac/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=