Bump github.com/dghubble/sling from 1.4.1 to 1.4.2 in /examples

Bumps [github.com/dghubble/sling](https://github.com/dghubble/sling) from 1.4.1 to 1.4.2.
- [Release notes](https://github.com/dghubble/sling/releases)
- [Changelog](https://github.com/dghubble/sling/blob/main/CHANGES.md)
- [Commits](v1.4.1...v1.4.2)

---
updated-dependencies:
- dependency-name: github.com/dghubble/sling
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

examples/go.mod

@@ -4,7 +4,7 @@ go 1.19
 
 require (
 	github.com/coreos/pkg v0.0.0-20230209195159-6f3db454fdf8
-	github.com/dghubble/sling v1.4.1
+	github.com/dghubble/sling v1.4.2
 	golang.org/x/oauth2 v0.17.0
 )
 

examples/go.sum

@@ -1,7 +1,7 @@
 github.com/coreos/pkg v0.0.0-20230209195159-6f3db454fdf8 h1:bu+DLSrk0L1eW0/tNbOMJ9VcHO3jkvtxcncB9wcBa0A=
 github.com/coreos/pkg v0.0.0-20230209195159-6f3db454fdf8/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
-github.com/dghubble/sling v1.4.1 h1:AxjTubpVyozMvbBCtXcsWEyGGgUZutC5YGrfxPNVOcQ=
-github.com/dghubble/sling v1.4.1/go.mod h1:QoMB1KL3GAo+7HsD8Itd6S+6tW91who8BGZzuLvpOyc=
+github.com/dghubble/sling v1.4.2 h1:vs1HIGBbSl2SEALyU+irpYFLZMfc49Fp+jYryFebQjM=
+github.com/dghubble/sling v1.4.2/go.mod h1:o0arCOz0HwfqYQJLrRtqunaWOn4X6jxE/6ORKRpVTD4=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
 github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=