add fast publishing method

[devkral]

what

sometimes more than update should be fired.
This MR improves the speed of updates by simultaneous executing them (see http client) (no speed comparisation done yet).
It also adds a publishFast method for fire and forget or request collect operations (publishBatch).

Extend tested

I only used the unittests. Real life tests are still missing, as well as a speed benchmark

[devkral]

I cannot reproduce the phpstan error locally.

phpstan analyse
Note: Using configuration file <path>/phpstan.neon.
 37/37 [▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓] 100%
                                                                                                                        
 [OK] No errors