Bump github.com/docker/docker in /tools

Bumps [github.com/docker/docker](https://github.com/docker/docker) from 26.1.5+incompatible to 28.0.0+incompatible.
- [Release notes](https://github.com/docker/docker/releases)
- [Commits](moby/moby@v26.1.5...v28.0.0)

---
updated-dependencies:
- dependency-name: github.com/docker/docker
  dependency-version: 28.0.0+incompatible
  dependency-type: indirect
...

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

Author: dependabot[bot]

tools/go.mod

@@ -57,7 +57,7 @@ require (
 	github.com/denis-tingaikin/go-header v0.5.0 // indirect
 	github.com/docker/cli v25.0.4+incompatible // indirect
 	github.com/docker/distribution v2.8.2+incompatible // indirect
-	github.com/docker/docker v26.1.5+incompatible // indirect
+	github.com/docker/docker v28.0.0+incompatible // indirect
 	github.com/docker/docker-credential-helpers v0.7.0 // indirect
 	github.com/ettle/strcase v0.2.0 // indirect
 	github.com/fatih/color v1.18.0 // indirect

tools/go.sum

@@ -112,8 +112,8 @@ github.com/docker/cli v25.0.4+incompatible h1:DatRkJ+nrFoYL2HZUzjM5Z5sAmcA5XGp+A
 github.com/docker/cli v25.0.4+incompatible/go.mod h1:JLrzqnKDaYBop7H2jaqPtU4hHvMKP+vjCwu2uszcLI8=
 github.com/docker/distribution v2.8.2+incompatible h1:T3de5rq0dB1j30rp0sA2rER+m322EBzniBPB6ZIzuh8=
 github.com/docker/distribution v2.8.2+incompatible/go.mod h1:J2gT2udsDAN96Uj4KfcMRqY0/ypR+oyYUYmja8H+y+w=
-github.com/docker/docker v26.1.5+incompatible h1:NEAxTwEjxV6VbBMBoGG3zPqbiJosIApZjxlbrG9q3/g=
-github.com/docker/docker v26.1.5+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
+github.com/docker/docker v28.0.0+incompatible h1:Olh0KS820sJ7nPsBKChVhk5pzqcwDR15fumfAd/p9hM=
+github.com/docker/docker v28.0.0+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
 github.com/docker/docker-credential-helpers v0.7.0 h1:xtCHsjxogADNZcdv1pKUHXryefjlVRqWqIhk/uXJp0A=
 github.com/docker/docker-credential-helpers v0.7.0/go.mod h1:rETQfLdHNT3foU5kuNkFR1R1V12OJRRO5lzt2D1b5X0=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=