Merge remote-tracking branch 'origin/release/1.7.x' into release1.7_to_1.8

.circleci/config.yml

Corona-Warn-App/proguard-rules.pro

.../coronawarnapp/test/appconfig/ui/AppConfigTestFragment.kt

...in/java/de/rki/coronawarnapp/appconfig/AppConfigModule.kt

.../java/de/rki/coronawarnapp/appconfig/AppConfigProvider.kt

...in/java/de/rki/coronawarnapp/appconfig/AppConfigSource.kt

...rc/main/java/de/rki/coronawarnapp/appconfig/ConfigData.kt

...de/rki/coronawarnapp/appconfig/ExposureDetectionConfig.kt

...e/rki/coronawarnapp/appconfig/internal/AppConfigSource.kt

...nfig/internal/ApplicationConfigurationCorruptException.kt

...nfig/internal/ApplicationConfigurationInvalidException.kt

...i/coronawarnapp/appconfig/internal/ConfigDataContainer.kt

...ki/coronawarnapp/appconfig/internal/InternalConfigData.kt

...arnapp/appconfig/mapping/ExposureDetectionConfigMapper.kt

...awarnapp/appconfig/mapping/KeyDownloadParametersMapper.kt

...napp/appconfig/sources/fallback/DefaultAppConfigSource.kt

...coronawarnapp/appconfig/sources/local/AppConfigStorage.kt

...nawarnapp/appconfig/sources/local/LocalAppConfigSource.kt

.../coronawarnapp/appconfig/sources/remote/AppConfigApiV1.kt

...onawarnapp/appconfig/sources/remote/AppConfigHttpCache.kt