Use GitHub actions (#447)

* init github actions

* init github actions: test run on feature branch

* github actions: remove alternative mysql port

* github actions: expose mysql port

* github actions: install & try migrations

* github actions: adjust test db configuration for github actions

* github actions: run tests

* github actions: fix codeception db connection add actions badge

* github actions: try only php8

* github actions: add php 7.4

* github actions: dont fail fast

* github actions: save test-outputs as artifacts

* github actions: save test-outputs only on fail

* github actions: save runtime folder in artifacts on failed build

* github actions: save runtime folder in artifacts on failed build

* github actions: save error  logs for tests

* github actions: log error if unable to send email on new user creation

* github actions: change log conf

* github actions: add tests yii2:transaction=false to pass tests on php < 8

* github actions: add tests yii2:transaction=false to pass tests on php < 8

* github actions: remove travis

* github actions: add changelog

CHANGELOG.md

@@ -1,6 +1,7 @@
 # CHANGELOG
 
 ## work in progress
+ - Fix replace non-working travis build with working github actions build (TonisOrmisson)
  - Fix user login events not triggered on ajax requests (TonisOrmisson)
  - Enh: Added minimum requirements when a new password is automatically generated (MatteoF96)
  - Fix #380: Avoid rewriting AccessRule::matchRole (maxxer)