bunt release v1.3.1

fc69f41 Change color settings to be pflag.Value compatible
7c5a5a4 Move badges into headline
c7b2bd1 Introduce common GitHub Action build and test
6527ef6 Update Go module files
8f0faaa Remove fetch deep from build GitHub action
8b3db65 Remove Travis configuration
65bf0e9 Rename build/test GitHub Action file name
e263d27 Add code coverage upload