fix(make): update e2e kind cluster flag

This flag changed from `-kindCluster` to `-installType=KindCluster` but
the Makefile wasn't updated. This change adds the fix so `make test-e2e`
doesn't throw an error for the unknown flag.

Signed-off-by: Jon Huhn <johuhn@microsoft.com>

Makefile

@@ -21,7 +21,7 @@ BUILD_GITCOMMIT_VAR := github.com/openservicemesh/osm/pkg/version.GitCommit
 LDFLAGS ?= "-X $(BUILD_DATE_VAR)=$(BUILD_DATE) -X $(BUILD_VERSION_VAR)=$(VERSION) -X $(BUILD_GITCOMMIT_VAR)=$(GIT_SHA) -X main.chartTGZSource=$$(cat -) -s -w"
 
 # These two values are combined and passed to go test
-E2E_FLAGS ?= -kindCluster
+E2E_FLAGS ?= -installType=KindCluster
 E2E_FLAGS_DEFAULT := -test.v -ginkgo.v -ginkgo.progress -ctrRegistry $(CTR_REGISTRY) -osmImageTag $(CTR_TAG)
 
 check-env: