fix(userspace/falco): accept 'Content-Type' header that contains "application/json", but it is not strictly equal to it.
fix(userspace/falco): accept 'Content-Type' header that contains "application/json", but it is not strictly equal to it.

Signed-off-by: Federico Di Pierro <6c3e26470d5343bb7a522873746c21bb7fcc0d20@gmail.com>

draios/falco,draios/falco,draios/falco,draios/falco,draios/falco,draios/falco,draios/falco,draios/falco