[fix] brave autocompleter: charset_normalizer issues

Use httpx.Response.json() to avoid charset_normalizer issues:

DEBUG   charset_normalizer            : override steps (5) and chunk_size (512) as content does not fit (153 byte(s) given) parameters.
INFO    charset_normalizer            : ascii passed initial chaos probing. Mean measured chaos is 0.000000 %
DEBUG   charset_normalizer            : ascii should target any language(s) of ['Latin Based']
INFO    charset_normalizer            : ascii is most likely the one. Stopping the process.

[1] https://www.python-httpx.org/api/#response



Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>