gnu: go-netns: Rename varialbe.

* gnu/packages/networking.scm (go-netns): Rename variable to
go-github-com-vishvananda-netns to reflect go.mod import path.
(yggdrasil) [propagated-inputs]: Remove go-netns, add
go-github-com-vishvananda-netns.
(nebula): [inputs]: Remove go-netns, add go-github-com-vishvananda-netns.

* gnu/packages/docker.scm (docker-libnetwork-cmd-proxy) [native-inputs]:
Remove go-netns, add go-github-com-vishvananda-netns.

* gnu/packages/linux.scm (go-netlink) [native-inputs]: Remove go-netns,
add go-github-com-vishvananda-netns.

Change-Id: I49fb89a886134b0c768557ca4700c9be19c2c5d7

gnu/packages/docker.scm

@@ -311,7 +311,7 @@ (define-public docker-libnetwork-cmd-proxy
        ;; For tests.
        ("logrus" ,go-github-com-sirupsen-logrus)
        ("go-netlink" ,go-netlink)
-       ("go-netns" ,go-netns)
+       ("go-github-com-vishvananda-netns" ,go-github-com-vishvananda-netns)
        ("go-golang-org-x-crypto"
         ,go-golang-org-x-crypto)
        ("go-golang-org-x-sys" ,go-golang-org-x-sys)))

gnu/packages/linux.scm

@@ -9307,7 +9307,7 @@ (define-public go-netlink
      `(#:tests? #f      ; Tests depend on specific kernel modules.
        #:import-path "github.com/vishvananda/netlink"))
     (native-inputs
-     (list go-golang-org-x-sys go-netns))
+     (list go-golang-org-x-sys go-github-com-vishvananda-netns))
     (home-page "https://github.com/vishvananda/netlink")
     (synopsis "Simple netlink library for Go")
     (description "The netlink package provides a simple netlink library for

gnu/packages/networking.scm

@@ -1917,9 +1917,9 @@ (define-public gandi.cli
 virtual machines, and certificates.")
     (license license:gpl3+)))
 
-(define-public go-netns
+(define-public go-github-com-vishvananda-netns
   (package
-    (name "go-netns")
+    (name "go-github-com-vishvananda-netns")
     (version "0.0.4")
     (source
      (origin
@@ -4663,7 +4663,7 @@ (define-public yggdrasil
            go-golang-org-x-crypto
            go-golang-org-x-tools
            go-golang-org-x-sys
-           go-netns
+           go-github-com-vishvananda-netns
            go-netlink
            go-github-com-bits-and-blooms-bitset
            go-github-com-bits-and-blooms-bloom
@@ -4781,7 +4781,7 @@ (define-public nebula
            go-google-golang-org-protobuf
            go-gopkg-in-yaml-v2
            go-netlink
-           go-netns))
+           go-github-com-vishvananda-netns))
     (home-page "https://github.com/slackhq/nebula")
     (synopsis "Scalable, peer-to-peer overlay networking tool")
     (description