Update release script to support CircleCI builds#8950

zugaldia merged 2 commits into

release-ios-v3.6.0-android-v5.1.0mapbox/mapbox-gl-native:release-ios-v3.6.0-android-v5.1.0from

8858-releasepymapbox/mapbox-gl-native:8858-releasepyCopy head branch name to clipboard