use current tokens when reconnecting to NATS

This required forking NATS. I'm trying to get the changes upstreamed in
nats-io/nats.go#1599

Author: btoews

go.mod

@@ -245,4 +245,7 @@ require (
 	gvisor.dev/gvisor v0.0.0-20230927004350-cbd86285d259 // indirect
 )
 
-replace github.com/loadsmart/calver-go => github.com/ndarilek/calver-go v0.0.0-20230710153822-893bbd83a936
+replace (
+	github.com/loadsmart/calver-go => github.com/ndarilek/calver-go v0.0.0-20230710153822-893bbd83a936
+	github.com/nats-io/nats.go => github.com/btoews/nats.go v0.0.0-20240401180931-476bea7f4158
+)

go.sum

@@ -147,6 +147,8 @@ github.com/bradleyjkemp/cupaloy/v2 v2.6.0 h1:knToPYa2xtfg42U3I6punFEjaGFKWQRXJwj
 github.com/bradleyjkemp/cupaloy/v2 v2.6.0/go.mod h1:bm7JXdkRd4BHJk9HpwqAI8BoAY1lps46Enkdqw6aRX0=
 github.com/briandowns/spinner v1.23.0 h1:alDF2guRWqa/FOZZYWjlMIx2L6H0wyewPxo/CH4Pt2A=
 github.com/briandowns/spinner v1.23.0/go.mod h1:rPG4gmXeN3wQV/TsAY4w8lPdIM6RX3yqeBQJSrbXjuE=
+github.com/btoews/nats.go v0.0.0-20240401180931-476bea7f4158 h1:dyIdqIvZvxRjekfXZL+ZD3FdJzQS5gq/I7IFSyQ/aNg=
+github.com/btoews/nats.go v0.0.0-20240401180931-476bea7f4158/go.mod h1:Ubdu4Nh9exXdSz0RVWRFBbRfrbSxOYd26oF0wkWclB8=
 github.com/buildpacks/imgutil v0.0.0-20240118145509-e94a1b7de8a9 h1:kxe31xfMWJAIAzDfGQ3lL0j8QSSRfEHyLg7dRWIHA8I=
 github.com/buildpacks/imgutil v0.0.0-20240118145509-e94a1b7de8a9/go.mod h1:PsazEB9yz+NG/cgm0Z1oQ0Xq6rD/U7eNMt5Su41afYY=
 github.com/buildpacks/lifecycle v0.18.5 h1:lfoUX8jYCUZ2/Tr2AopaRjinqDivkNkcTChzysQTo00=
@@ -469,8 +471,6 @@ github.com/morikuni/aec v1.0.0/go.mod h1:BbKIizmSmc5MMPqRYbxO4ZU0S0+P200+tUnFx7P
 github.com/muesli/termenv v0.15.2 h1:GohcuySI0QmI3wN8Ok9PtKGkgkFIk7y6Vpb5PvrY+Wo=
 github.com/muesli/termenv v0.15.2/go.mod h1:Epx+iuz8sNs7mNKhxzH4fWXGNpZwUaJKRS1noLXviQ8=
 github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
-github.com/nats-io/nats.go v1.34.0 h1:fnxnPCNiwIG5w08rlMcEKTUw4AV/nKyGCOJE8TdhSPk=
-github.com/nats-io/nats.go v1.34.0/go.mod h1:Ubdu4Nh9exXdSz0RVWRFBbRfrbSxOYd26oF0wkWclB8=
 github.com/nats-io/nkeys v0.4.7 h1:RwNJbbIdYCoClSDNY7QVKZlyb/wfT6ugvFCiKy6vDvI=
 github.com/nats-io/nkeys v0.4.7/go.mod h1:kqXRgRDPlGy7nGaEDMuYzmiJCIAAWDK0IMBtDmGD0nc=
 github.com/nats-io/nuid v1.0.1 h1:5iA8DT8V7q8WK2EScv2padNa/rTESc1KdnPw4TC2paw=

logs/nats.go

@@ -75,7 +75,12 @@ func newNatsClient(ctx context.Context, dialer agent.Dialer, orgSlug string) (*n
 	natsIP := net.IP(natsIPBytes[:])
 
 	url := fmt.Sprintf("nats://[%s]:4223", natsIP.String())
-	conn, err := nats.Connect(url, nats.SetCustomDialer(&natsDialer{dialer, ctx}), nats.UserInfo(orgSlug, config.Tokens(ctx).NATS()))
+	toks := config.Tokens(ctx)
+	conn, err := nats.Connect(
+		url,
+		nats.SetCustomDialer(&natsDialer{dialer, ctx}),
+		nats.UserInfoHandler(func() (string, string) { return orgSlug, toks.NATS() }),
+	)
 	if err != nil {
 		return nil, fmt.Errorf("failed connecting to nats: %w", err)
 	}