gnu: openvswitch: Update to 2.13.0.

* gnu/packages/networking.scm (openvswitch): Update to 2.13.0.
[native-inputs]: Change from PYTHON-2 to PYTHON-WRAPPER.
[propagated-inputs]: Remove PYTHON2-SIX.

gnu/packages/networking.scm

@@ -1908,7 +1908,7 @@ procedure calls (RPCs).")
 (define-public openvswitch
   (package
     (name "openvswitch")
-    (version "2.12.0")
+    (version "2.13.0")
     (source (origin
               (method url-fetch)
               (uri (string-append
@@ -1916,7 +1916,7 @@ procedure calls (RPCs).")
                     version ".tar.gz"))
               (sha256
                (base32
-                "1y78ix5inhhcvicbvyy2ij38am1215nr55vydhab3d4065q45z8k"))))
+                "0cd5vmfr6zwgcnkwys6rag6cmz68v0librpaplianv734xs74pyx"))))
     (build-system gnu-build-system)
     (arguments
      '(;; FIXME: many tests fail with:
@@ -1943,11 +1943,9 @@ procedure calls (RPCs).")
     (native-inputs
      `(("perl" ,perl)
        ("pkg-config" ,pkg-config)
-       ("python" ,python-2)
+       ("python" ,python-wrapper)
        ;; for testing
        ("util-linux" ,util-linux)))
-    (propagated-inputs
-     `(("python-six" ,python2-six)))
     (inputs
      `(("libcap-ng" ,libcap-ng)
        ("openssl" ,openssl)))