integration/docker: unskip yum test

yum command works well in kata containers, unskip and reimplement yum test

Signed-off-by: Julio Montes <[email protected]>

integration/docker/package_manager_test.go

@@ -87,10 +87,14 @@ var _ = Describe("package manager update test", func() {
 
 	Context("check yum update", func() {
 		It("should not fail", func() {
-			Skip("Issue: https://github.com/kata-containers/tests/issues/264")
-			args = append(args, "--rm", "--name", id, CentosImage, "yum", "-y", "update")
+			args = append(args, "--rm", "-td", "--name", id, CentosImage, "sh")
 			_, _, exitCode := dockerRun(args...)
 			Expect(exitCode).To(BeZero())
+
+			exitCode = tryPackageManagerCommand(id, []string{"yum", "-y", "update"}, 0)
+			Expect(exitCode).To(BeZero())
+
+			Expect(RemoveDockerContainer(id)).To(BeTrue())
 		})
 	})
 })