Merge branch 'release/1.15.x' into dev/merge-1.15-into-2.0

...napp/worker/DiagnosisTestResultRetrievalPeriodicWorker.kt

Corona-Warn-App/src/main/res/drawable/ic_download.xml

...pp/src/main/res/layout/bugreporting_debuglog_fragment.xml

...main/res/layout/bugreporting_debuglog_upload_fragment.xml

.../src/main/res/layout/contact_diary_location_list_item.xml

...arn-App/src/main/res/layout/fragment_settings_tracing.xml

...p/src/main/res/layout/submission_blocking_dialog_view.xml

...pp/src/main/res/layout/tracing_content_increased_view.xml

...Warn-App/src/main/res/layout/tracing_content_low_view.xml

...ain/res/layout/tracing_details_item_periodlogged_view.xml

...na-Warn-App/src/main/res/layout/view_more_information.xml

...Warn-App/src/main/res/values-bg/contact_diary_strings.xml

...-Warn-App/src/main/res/values-bg/release_info_strings.xml

Corona-Warn-App/src/main/res/values-bg/strings.xml

Corona-Warn-App/src/main/res/values-de/legal_strings.xml

Corona-Warn-App/src/main/res/values-de/strings.xml

...Warn-App/src/main/res/values-en/contact_diary_strings.xml

...-Warn-App/src/main/res/values-en/release_info_strings.xml

Corona-Warn-App/src/main/res/values-en/strings.xml

...Warn-App/src/main/res/values-pl/contact_diary_strings.xml