build(deps): bump github.com/docker/docker from 26.0.0+incompatible to 26.0.2+incompatible (#284)

* build(deps): bump github.com/docker/docker

Bumps [github.com/docker/docker](https://github.com/docker/docker) from 26.0.0+incompatible to 26.0.2+incompatible.
- [Release notes](https://github.com/docker/docker/releases)
- [Commits](https://github.com/docker/docker/compare/v26.0.0...v26.0.2)

---
updated-dependencies:
- dependency-name: github.com/docker/docker
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

* Add toolchain to go.mod

* Bump to go 1.22.2

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Geoff Bourne <itzgeoff@gmail.com>

go.mod

@@ -1,6 +1,8 @@
 module github.com/itzg/mc-router
 
-go 1.20
+go 1.21
+
+toolchain go1.22.2
 
 require (
 	github.com/go-kit/kit v0.13.0
@@ -59,7 +61,7 @@ require (
 	github.com/Microsoft/go-winio v0.5.2 // indirect
 	github.com/VividCortex/gohistogram v1.0.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/docker/docker v26.0.0+incompatible
+	github.com/docker/docker v26.0.2+incompatible
 	github.com/docker/go-connections v0.4.0 // indirect
 	github.com/docker/go-units v0.4.0 // indirect
 	github.com/go-kit/log v0.2.0 // indirect
@@ -80,10 +82,10 @@ require (
 	github.com/opencontainers/image-spec v1.0.2 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
-	golang.org/x/net v0.17.0 // indirect
+	golang.org/x/net v0.23.0 // indirect
 	golang.org/x/oauth2 v0.8.0 // indirect
-	golang.org/x/sys v0.16.0 // indirect
-	golang.org/x/term v0.13.0 // indirect
+	golang.org/x/sys v0.18.0 // indirect
+	golang.org/x/term v0.18.0 // indirect
 	golang.org/x/time v0.3.0 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
 	google.golang.org/protobuf v1.33.0 // indirect