Update Java profiler library to 1.40.0

Contains a number of stability and performance fixes as well as improved stack unwinding fidelity.

Merge branch 'master' into jb/ddprof_1.40.0

Co-authored-by: bric3 <brice.dutheil@gmail.com>
Co-authored-by: jaroslav.bachorik <jaroslav.bachorik@datadoghq.com>
(cherry picked from commit ff3b3f5)