Bump golang.org/x/text from 0.3.7 to 0.3.8 in /docsgen

Bumps [golang.org/x/text](https://github.com/golang/text) from 0.3.7 to 0.3.8.
- [Release notes](https://github.com/golang/text/releases)
- [Commits](golang/text@v0.3.7...v0.3.8)

---
updated-dependencies:
- dependency-name: golang.org/x/text
  dependency-type: indirect
...

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

Author: dependabot[bot]

docsgen/go.mod

@@ -82,14 +82,13 @@ require (
 	go.opentelemetry.io/otel v0.20.0 // indirect
 	go.opentelemetry.io/otel/metric v0.20.0 // indirect
 	go.opentelemetry.io/otel/trace v0.20.0 // indirect
-	golang.org/x/crypto v0.0.0-20210817164053-32db794688a5 // indirect
-	golang.org/x/mod v0.5.0 // indirect
-	golang.org/x/net v0.0.0-20210813160813-60bc85c4be6d // indirect
-	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
-	golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 // indirect
-	golang.org/x/text v0.3.7 // indirect
-	golang.org/x/tools v0.1.5 // indirect
-	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
+	golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 // indirect
+	golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4 // indirect
+	golang.org/x/net v0.0.0-20220722155237-a158d28d115b // indirect
+	golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4 // indirect
+	golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f // indirect
+	golang.org/x/text v0.3.8 // indirect
+	golang.org/x/tools v0.1.12 // indirect
 	google.golang.org/genproto v0.0.0-20211208223120-3a66f561d7aa // indirect
 	google.golang.org/grpc v1.42.0 // indirect
 	google.golang.org/protobuf v1.27.1 // indirect