[DPE-6815] disable pgaudit during extensions changes (#923)

* Try to disable pgaudit before changing exts

* Don't enable pgaudit with the other plugins

* Enable the plugin

* Bump libs

* Add semicolon

* Reuse connection for pgaudit conf

* Revert "Reuse connection for pgaudit conf"

This reverts commit d647a2e.

* Revert lib

* Initial disable

Author: dragomirp