Update kind version

Signed-off-by: Surya Seetharaman <[email protected]>

Author: tssurya

hack/crd-e2e.sh

@@ -44,7 +44,7 @@ trap cleanup INT TERM
 res=0
 
 # Install kind
-(go install sigs.k8s.io/kind@v0.17.0) || res=$?
+(go install sigs.k8s.io/kind@v0.21.0) || res=$?
 
 # Create cluster
 KIND_CREATE_ATTEMPTED=true