Co-authored-by: Michael Kriese <michael.kriese@visualon.de>

Co-authored-by: Jamie Magee <JamieMagee@users.noreply.github.com>

* refactor: createPR function (#4996)
1. Interface created: createPRConfig

* refactor: Create PR function (#4996)
Remove label parameter from bitbucket and bitbucket server function call.

Co-authored-by: Michael Kriese <michael.kriese@visualon.de>
Co-authored-by: Rhys Arkins <rhys@arkins.net>

Co-authored-by: Michael Kriese <michael.kriese@visualon.de>

Co-authored-by: Michael Kriese <michael.kriese@visualon.de>

Co-authored-by: Michael Kriese <michael.kriese@visualon.de>

Add an information to enable `Allow edits from maintainers`. Seems to be disabled by default.

Co-authored-by: Michael Kriese <michael.kriese@visualon.de>

fixes #5015

* fix(azure): reimplement getpr using getprlist

* test fixes

* skipping disabled repos in gitlab

* adding tests for gitlab disabled repo check

* fixing empty_repo test

* skip gitlab project if MRs are disabled

Co-authored-by: Jamie Magee <JamieMagee@users.noreply.github.com>

Closes #5069, Closes #5082

Node 8 is no longer LTS