e2e: Add early return in Context() for disabled tests

Some parts of the Context() seem to get executed, even when BeforeEach()
did a Skip() for the test. By adding a return inside the Context(), the
tests should not get executed at all.

This was noticed in a failed test, where upgrade was running, eventhough
the job was executed as a nornal non-upgrade one.

Signed-off-by: Niels de Vos <ndevos@redhat.com>

e2e/rbd.go

@@ -380,6 +380,10 @@ var _ = Describe("RBD", func() {
 	})
 
 	Context("Test RBD CSI", func() {
+		if !testRBD || upgradeTesting {
+			return
+		}
+
 		It("Test RBD CSI", func() {
 			// test only if ceph-csi is deployed via helm
 			if helmTest {