Can't use permissions API in SDK 29

@sjchmiela, this code works on develop mode, when i build a release APK, the Notifications requests stop working again.

    buildTypes {
        debug {
            debuggable true
            ext.enableCrashlytics = false
            signingConfig signingConfigs.configs
        }
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
            zipAlignEnabled true
            signingConfig signingConfigs.configs
        }
    }