Add Rust compression build to OTEL integration tests

The otel-agent.integration-test job links against libdatadog_compression
and needs the Rust library built before running the tests.

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: blt

.gitlab/test/integration_test/otel.yml

@@ -9,6 +9,7 @@ integration_tests_otel:
   needs: ["go_deps"]
   script:
     - !reference [.retrieve_linux_go_deps]
+    - dda inv -- rust-compression.build --release
     - dda inv -- check-otel-build
     - dda inv -- check-otel-module-versions
     - dda inv -- otel-agent.integration-test