feat!: move serialization into zenoh-ext #8878

Job	Run time
Typos Check	3s
Unit tests on ubuntu-latest	22m 53s
Lints and doc tests on ubuntu-latest	7m 47s
Unit tests on windows-latest	36m 23s
Lints and doc tests on windows-latest	9m 50s
Unit tests on macos-13	13m 3s
Lints and doc tests on macos-13	10m 40s
Unit tests on macos-14	10m 33s
Lints and doc tests on macos-14	8m 30s
Memory leak checks	0s
CI status checks	1s
	1h 59m 43s

Provide feedback