Revert "[client] add initialization of prometheus metrics in helper (O…

…penCTI-Platform#215)" (OpenCTI-Platform#218)

This reverts commit 14531e6.

[client] Fix tests

[client] Fix depedency

[integration] Update the test token

[client] Get identity_class on created by ref (OpenCTI-Platform#185)

Fixed format type and documentation according to code (OpenCTI-Platfo…

…rm#179)

[client] Prepare next release

[client] Fix synchronization between platforms

[client] Take into account the scope (OpenCTI-Platform#171)

[client] Update integration tests