Converted risk level transaction to task (EXPOSUREAPP-2842) (#1412)

* converted risk level transaction to task

* simplified

* fixed config: timeout is now duration

* less is more

* arrangement + empty lines

* Added additional checks to notification of exposure/test-result to check for finished submission

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* submit risk level task requests

* - unreachable catch blocks

* housekeeping

* satisfied ktlint + detekt

* fixed flow: isRefreshing

* fixed flavour for testers

* refactored benchmark

* fixed package declaration

* unit tests

* fixed injection

* fixed tests

* comments from PR

* fixed injection

* fixed lint issues

* fixed another merge conflict

* - unused class

* map task factory

* fulfilled comment style wishes

* fixed tests suspended by changes from develop branch

* Update Corona-Warn-App/src/main/java/de/rki/coronawarnapp/risk/DefaultRiskLevels.kt

https://github.com/corona-warn-app/cwa-app-android/pull/1412#discussion_r514325776



Co-authored-by: Kolya Opahle <k.opahle@sap.com>

* changes from PR

* fixed a test

* show logs, ktlint issues

* made log tag non-nullable

* improvements from reviewers

* reduced static access

* Saint Pipeline, please give me the green light

* toString()

* ktlint + di

* fixed test

Co-authored-by: Kolya Opahle <k.opahle@sap.com>
Co-authored-by: harambasicluka <64483219+harambasicluka@users.noreply.github.com>