Bump github.com/tektoncd/pipeline

Bumps [github.com/tektoncd/pipeline](https://github.com/tektoncd/pipeline) from 0.48.0 to 0.49.0.
- [Release notes](https://github.com/tektoncd/pipeline/releases)
- [Changelog](https://github.com/tektoncd/pipeline/blob/main/releases.md)
- [Commits](v0.48.0...v0.49.0)

---
updated-dependencies:
- dependency-name: github.com/tektoncd/pipeline
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

test/custom-task-ctrls/wait-task-beta/go.mod

@@ -5,7 +5,7 @@ go 1.15
 require (
 	github.com/emicklei/go-restful v2.16.0+incompatible // indirect
 	github.com/google/go-cmp v0.5.9
-	github.com/tektoncd/pipeline v0.48.0
+	github.com/tektoncd/pipeline v0.49.0
 	k8s.io/api v0.26.6
 	k8s.io/apimachinery v0.26.6
 	k8s.io/client-go v0.25.11