Bump io.opentelemetry:opentelemetry-bom from 1.30.1 to 1.40.0

Bumps [io.opentelemetry:opentelemetry-bom](https://github.com/open-telemetry/opentelemetry-java) from 1.30.1 to 1.40.0.
- [Release notes](https://github.com/open-telemetry/opentelemetry-java/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-java/blob/main/CHANGELOG.md)
- [Commits](open-telemetry/opentelemetry-java@v1.30.1...v1.40.0)

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

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

build.gradle

@@ -26,7 +26,7 @@ subprojects {
     }
 
     ext {
-        otelVersion = '1.30.1'
+        otelVersion = '1.40.0'
         otelVersionAlpha = "${otelVersion}-alpha"
         javaSDKVersion = '1.24.0'
         camelVersion = '3.22.1'