chore(deps): bump go.einride.tech/sage from 0.265.1 to 0.268.0 in /.sage

Bumps [go.einride.tech/sage](https://github.com/einride/sage) from 0.265.1 to 0.268.0.
- [Release notes](https://github.com/einride/sage/releases)
- [Commits](einride/sage@v0.265.1...v0.268.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

.sage/go.mod

@@ -2,4 +2,4 @@ module sage
 
 go 1.17
 
-require go.einride.tech/sage v0.265.1
+require go.einride.tech/sage v0.268.0

.sage/go.sum

@@ -1,2 +1,2 @@
-go.einride.tech/sage v0.265.1 h1:q3vZbehb1EqxjY2IsJNjIayBjBHU/uKD96fDz22rauM=
-go.einride.tech/sage v0.265.1/go.mod h1:EzV5uciFX7/2ho8EKB5K9JghOfXIxlzs694b+Tkl5GQ=
+go.einride.tech/sage v0.268.0 h1:/NKvKzhIis1izBHPwK4YbRWYLL5+q+oVOANt8Z7snWA=
+go.einride.tech/sage v0.268.0/go.mod h1:EzV5uciFX7/2ho8EKB5K9JghOfXIxlzs694b+Tkl5GQ=

externalclock/clock_test.go

@@ -313,7 +313,7 @@ func TestExternalClock_TestLooper_AddTicker(t *testing.T) {
 		init:         make(chan struct{}),
 		Clock:        externalClock,
 		LoopInterval: 1 * time.Millisecond,
-		Callback: func(tick int64) {
+		Callback: func(_ int64) {
 			cancel()
 		},
 	}