python3.11 support

[tanagumo]

elasticapm.utils.wrapt.decorators module imports formatargspec from inspect package, which is removed at python3.11.

[beniwohli]

@tanagumo thanks for raising this issue! We've decided to completely remove elasticapm.utils.wrapt and instead rely on the official wrapt package going forward. We'll release a new version of the agent ASAP!

[tanagumo]

@beniwohli thanks for your quick response!