*: git.monogon.dev -> source.monogon.dev

This implements T882, setting our (virtual) GOPATH to source.monogon.dev
for this repository.

Test Plan: Refactor, CI only.

X-Origin-Diff: phab/D686
GitOrigin-RevId: c5e2309089948ffc3a98e68e2e0e1cbb157d3a36
diff --git a/metropolis/node/core/main.go b/metropolis/node/core/main.go
index d277fcd..e72c8b5 100644
--- a/metropolis/node/core/main.go
+++ b/metropolis/node/core/main.go
@@ -32,19 +32,19 @@
 	"golang.org/x/sys/unix"
 	"google.golang.org/grpc"
 
-	common "git.monogon.dev/source/nexantic.git/metropolis/node"
-	"git.monogon.dev/source/nexantic.git/metropolis/node/core/cluster"
-	"git.monogon.dev/source/nexantic.git/metropolis/node/core/localstorage"
-	"git.monogon.dev/source/nexantic.git/metropolis/node/core/localstorage/declarative"
-	"git.monogon.dev/source/nexantic.git/metropolis/node/core/network"
-	"git.monogon.dev/source/nexantic.git/metropolis/node/core/network/dns"
-	"git.monogon.dev/source/nexantic.git/metropolis/node/kubernetes"
-	"git.monogon.dev/source/nexantic.git/metropolis/node/kubernetes/containerd"
-	"git.monogon.dev/source/nexantic.git/metropolis/node/kubernetes/pki"
-	"git.monogon.dev/source/nexantic.git/metropolis/pkg/logtree"
-	"git.monogon.dev/source/nexantic.git/metropolis/pkg/supervisor"
-	"git.monogon.dev/source/nexantic.git/metropolis/pkg/tpm"
-	apb "git.monogon.dev/source/nexantic.git/metropolis/proto/api"
+	common "source.monogon.dev/metropolis/node"
+	"source.monogon.dev/metropolis/node/core/cluster"
+	"source.monogon.dev/metropolis/node/core/localstorage"
+	"source.monogon.dev/metropolis/node/core/localstorage/declarative"
+	"source.monogon.dev/metropolis/node/core/network"
+	"source.monogon.dev/metropolis/node/core/network/dns"
+	"source.monogon.dev/metropolis/node/kubernetes"
+	"source.monogon.dev/metropolis/node/kubernetes/containerd"
+	"source.monogon.dev/metropolis/node/kubernetes/pki"
+	"source.monogon.dev/metropolis/pkg/logtree"
+	"source.monogon.dev/metropolis/pkg/supervisor"
+	"source.monogon.dev/metropolis/pkg/tpm"
+	apb "source.monogon.dev/metropolis/proto/api"
 )
 
 var (