Correctly parse JSON inference data in FiwareNode #1726

Job	Run time
reusable_tests / coverage	2m 1s
reusable_tests / flaky	1m 29s
reusable_tests / asan	1m 16s
reusable_tests / clang	1m 34s
reusable_tests / multiplatform-tests (Release, ubuntu-22.04)	1m 13s
reusable_tests / python-linter	13s
reusable_tests / multiplatform-tests (Release, ubuntu-24.04)	1m 10s
reusable_tests / ubuntu-test-documentation	44s
reusable_tests / tsan	1m 17s
reusable_tests / multiplatform-tests (Release, windows-2019)	9m 59s
reusable_tests / multiplatform-tests (Release, windows-2022)	10m 21s
reusable_tests / uncrustify	40s
reusable_tests / multiplatform-tests (Debug, ubuntu-22.04)	1m 22s
reusable_tests / multiplatform-tests (Debug, ubuntu-24.04)	1m 36s
reusable_tests / multiplatform-tests (Debug, windows-2019)	10m 4s
reusable_tests / multiplatform-tests (Debug, windows-2022)	7m 27s
	52m 26s

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