Fixes for Zenoh-cpp compatibility #683

Job	Run time
Check c99 compilation	12s
Check codebase format with clang-format	5s
Build raweth transport on ubuntu-latest	17s
Run unit tests on ubuntu-latest	31s
Build Zenoh from source	5m 34s
Test attachments	43s
Modular build on ubuntu-latest (1, 1, 1, 1)	40s
Test multicast and unicast fragmentation	44s
Modular build on ubuntu-latest (1, 1, 1, 0)	34s
Build and test in single thread on ubuntu-latest	31s
Modular build on ubuntu-latest (1, 1, 0, 1)	46s
Modular build on ubuntu-latest (1, 1, 0, 0)	39s
Modular build on ubuntu-latest (1, 0, 1, 1)	36s
Modular build on ubuntu-latest (1, 0, 1, 0)	34s
Modular build on ubuntu-latest (1, 0, 0, 1)	38s
Modular build on ubuntu-latest (1, 0, 0, 0)	35s
Modular build on ubuntu-latest (0, 1, 1, 1)	27s
Modular build on ubuntu-latest (0, 1, 1, 0)	24s
Modular build on ubuntu-latest (0, 1, 0, 1)	25s
Modular build on ubuntu-latest (0, 1, 0, 0)	21s
Modular build on ubuntu-latest (0, 0, 1, 1)	29s
Modular build on ubuntu-latest (0, 0, 1, 0)	22s
Modular build on ubuntu-latest (0, 0, 0, 1)	25s
Modular build on ubuntu-latest (0, 0, 0, 0)	24s
	16m 56s

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