Bump golang.org/x/text from 0.10.0 to 0.20.0 in /testbed

Bumps [golang.org/x/text](https://github.com/golang/text) from 0.10.0 to 0.20.0.
- [Release notes](https://github.com/golang/text/releases)
- [Commits](golang/text@v0.10.0...v0.20.0)

---
updated-dependencies:
- dependency-name: golang.org/x/text
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

testbed/go.mod

@@ -53,7 +53,7 @@ require (
 	go.opentelemetry.io/collector/semconv v0.81.0
 	go.uber.org/multierr v1.11.0
 	go.uber.org/zap v1.24.0
-	golang.org/x/text v0.10.0
+	golang.org/x/text v0.20.0
 )
 
 require (
@@ -113,7 +113,7 @@ require (
 	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
 	github.com/google/gnostic v0.6.9 // indirect
-	github.com/google/go-cmp v0.5.9 // indirect
+	github.com/google/go-cmp v0.6.0 // indirect
 	github.com/google/go-querystring v1.1.0 // indirect
 	github.com/google/gofuzz v1.2.0 // indirect
 	github.com/google/s2a-go v0.1.4 // indirect
@@ -232,15 +232,16 @@ require (
 	go.opentelemetry.io/otel/trace v1.16.0 // indirect
 	go.uber.org/atomic v1.11.0 // indirect
 	go.uber.org/goleak v1.2.1 // indirect
-	golang.org/x/crypto v0.10.0 // indirect
+	golang.org/x/crypto v0.23.0 // indirect
 	golang.org/x/exp v0.0.0-20230510235704-dd950f8aeaea // indirect
-	golang.org/x/mod v0.11.0 // indirect
-	golang.org/x/net v0.11.0 // indirect
+	golang.org/x/mod v0.17.0 // indirect
+	golang.org/x/net v0.25.0 // indirect
 	golang.org/x/oauth2 v0.9.0 // indirect
-	golang.org/x/sys v0.9.0 // indirect
-	golang.org/x/term v0.9.0 // indirect
+	golang.org/x/sync v0.9.0 // indirect
+	golang.org/x/sys v0.20.0 // indirect
+	golang.org/x/term v0.20.0 // indirect
 	golang.org/x/time v0.3.0 // indirect
-	golang.org/x/tools v0.10.0 // indirect
+	golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d // indirect
 	gonum.org/v1/gonum v0.13.0 // indirect
 	google.golang.org/api v0.129.0 // indirect
 	google.golang.org/appengine v1.6.7 // indirect