chore(deps): bump the go-dependencies group in /.sage with 1 update

Bumps the go-dependencies group in /.sage with 1 update: [go.einride.tech/sage](https://github.com/einride/sage).


Updates `go.einride.tech/sage` from 0.260.0 to 0.264.0
- [Release notes](https://github.com/einride/sage/releases)
- [Commits](einride/sage@v0.260.0...v0.264.0)

---
updated-dependencies:
- dependency-name: go.einride.tech/sage
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: go-dependencies
...

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

.sage/go.mod

@@ -2,4 +2,4 @@ module sage
 
 go 1.17
 
-require go.einride.tech/sage v0.260.0
+require go.einride.tech/sage v0.264.0

.sage/go.sum

@@ -1,2 +1,2 @@
-go.einride.tech/sage v0.260.0 h1:Ny4n2yq0rBvbOizP1z8Aoa/1XHP37issom1xOlHxUG4=
-go.einride.tech/sage v0.260.0/go.mod h1:EzV5uciFX7/2ho8EKB5K9JghOfXIxlzs694b+Tkl5GQ=
+go.einride.tech/sage v0.264.0 h1:NuEefbHh89txKXhVLcn70y1M2dY+eJw9cjLeousZefs=
+go.einride.tech/sage v0.264.0/go.mod h1:EzV5uciFX7/2ho8EKB5K9JghOfXIxlzs694b+Tkl5GQ=