updated actions/core library to version, which prevents deprecation w…

…arning.

Merge pull request thomaseizinger#174 from uluzox/master

Use github.actor instead of hardcoded name

This makes sure these CI checks also pass on forks of the repository.

Added support for labels and existing PR check (v2 from master) (thom…

…aseizinger#61)

* Added support for labels and existing PR check

* fixed strings comparison in bash

* fixed strings comparison in bash

* Updated change log

* fixed CI

* fixed CI

Co-authored-by: Vitaliy Litovskyi <vitaliy.litovskyi@securrency.com>

Add support for creating PR's in ghes and behind proxy (thomaseizinge…

…r#41)

Co-authored-by: sethu madhav kollu <sethu.kollu@sap.com>

Fix stupid mistake in action name