json_parser update -> set_buffer #3201

Job	Run time
ci_test_compilers_gcc (8)	3m 7s
ci_test_compilers_gcc (9)	3m 4s
clang_14_build	25m 5s
ci_test_compilers_gcc (10)	9m 1s
gcc_build	7m 33s
ci_test_compilers_gcc (11)	8m 14s
ci_test_compilers_gcc (12)	3m 3s
gcc_build_no_deprecated	7m 44s
gcc_build11b	47m 51s
ci_test_compilers_gcc (latest)	1m 3s
gcc_build12	9m 47s
github_20 (g++-12, Debug)	16m 14s
github_20 (g++-12, Release)	16m 16s
ci_test_compilers_clang2 (13)	7m 8s
ci_test_compilers_clang (3.8)	47s
ci_test_compilers_clang2 (15-bullseye)	6m 59s
ci_test_compilers_gcc2 (12)	11m 17s
ci_test_compilers_clang (3.9)	41s
ci_test_compilers_gcc2 (latest)	11m 19s
ci_test_compilers_clang (4)	26s
ci_test_compilers_clang (5)	1s
ci_test_compilers_clang (6)	1s
ci_test_compilers_clang (7)	1s
ci_test_compilers_clang (8)	1s
ci_test_compilers_clang (9)	1s
ci_test_compilers_clang (10)	9m 47s
ci_test_compilers_clang (11)	13m 11s
ci_test_compilers_clang (12)	6m 39s
ci_test_compilers_clang (13)	5m 29s
ci_test_compilers_clang (14)	5m 24s
ci_test_compilers_clang (15-bullseye)	3m 33s
	4h 0m 47s

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