Bump github.com/DataDog/agent-payload/v5 in /test/new-e2e

Bumps [github.com/DataDog/agent-payload/v5](https://github.com/DataDog/agent-payload) from 5.0.122 to 5.0.123.
- [Release notes](https://github.com/DataDog/agent-payload/releases)
- [Commits](DataDog/agent-payload@v5.0.122...v5.0.123)

---
updated-dependencies:
- dependency-name: github.com/DataDog/agent-payload/v5
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

test/new-e2e/go.mod

@@ -17,7 +17,7 @@ replace (
 )
 
 require (
-	github.com/DataDog/agent-payload/v5 v5.0.122
+	github.com/DataDog/agent-payload/v5 v5.0.123
 	github.com/DataDog/datadog-agent/pkg/util/pointer v0.55.0-rc.3
 	github.com/DataDog/datadog-agent/pkg/util/testutil v0.55.0-rc.3
 	github.com/DataDog/datadog-agent/pkg/version v0.55.0-rc.3