feat!: move serialization into zenoh-ext #8931

Job	Run time
Typos Check	6s
Lints and doc tests on ubuntu-latest	3m 25s
Unit tests on ubuntu-latest	20m 59s
Lints and doc tests on windows-latest	7m 34s
Unit tests on windows-latest	29m 53s
Lints and doc tests on macos-13	11m 31s
Unit tests on macos-13	18m 2s
Lints and doc tests on macos-14	3m 19s
Unit tests on macos-14	12m 8s
Memory leak checks	0s
CI status checks	1s
	1h 46m 58s

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