build(deps): bump io.opentelemetry.proto:opentelemetry-proto from 1.8.0-alpha to 1.9.0-alpha (#5388)

build(deps): bump io.opentelemetry.proto:opentelemetry-proto

Bumps [io.opentelemetry.proto:opentelemetry-proto](https://github.com/open-telemetry/opentelemetry-proto-java) from 1.8.0-alpha to 1.9.0-alpha.
- [Release notes](https://github.com/open-telemetry/opentelemetry-proto-java/releases)
- [Commits](https://github.com/open-telemetry/opentelemetry-proto-java/commits)

---
updated-dependencies:
- dependency-name: io.opentelemetry.proto:opentelemetry-proto
  dependency-version: 1.9.0-alpha
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -28,7 +28,7 @@ mockito = "5.2.0"
 nimbus = "10.6"
 okhttp = "5.3.2"
 opentelemetry = "1.32.0"
-opentelemetry-proto = "1.8.0-alpha"
+opentelemetry-proto = "1.9.0-alpha"
 parsson = "1.1.7"
 postgres = "42.7.8"
 restAssured = "5.5.6"