Bump third_party/nanopb/repo from `671672b` to `e00d04e` #117069

Job	Run time
Build on Darwin (clang, simulated)	47m 45s
Build on Linux (fake, gcc_release, clang, simulated)	56m 10s
Build on Linux (coverage)	21m 53s
Build on Linux (gcc_debug)	56m 22s
Build on Linux (python_lib)	23m 31s
Build on Linux (python lighting-app)	9m 17s
	3h 34m 58s

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