Export CycloneDDS dependency (backport #424)

[mergify[bot]]

This is an automatic backport of pull request #424 done by Mergify.

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[sloretz]

CI (repos file build: --packages-above-and-dependencies rmw_cyclonedds_cpp test: --packages-select rmw_cyclonedds_cpp)

• Linux
• Linux-aarch64
• Windows seems like an infra issue - rerun:

[sloretz]

CI LGTM!