gnu: quagga: Update to 1.2.3 [security fixes].

See the advisories at
<https://git.savannah.gnu.org/cgit/quagga.git/tree/doc/security?h=quagga-1.2.3>
for more information about the security-related bugs fixed in this
release.

* gnu/packages/networking.scm (quagga): Update to 1.2.3.

gnu/packages/networking.scm

@@ -1402,14 +1402,14 @@ (define-public spiped
 (define-public quagga
   (package
     (name "quagga")
-    (version "1.2.2")
+    (version "1.2.3")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://savannah/quagga/quagga-"
                                   version ".tar.gz"))
               (sha256
                (base32
-                "0c99rjjc62xl5kwvx2pwyvs0709vbwax1qydqbqf6r7fpvr24bjj"))
+                "0cddxip9gd579parx64n6d7iq937ikrb8qxgvjxjm406l43hjb7f"))
               (patches
                (search-patches "quagga-reproducible-build.patch"))))
     (build-system gnu-build-system)