Release v1.3.1

Changelog

• be1c1d2 Merge branch 'master' of github.com:mrz1836/go-template
• 8c855fb chore: bump version
• 375eed2 feat: added test coverage
• 7536b37 feat: move to magefiles
• e3f7ae7 fix: minor tweaks
• 240b6b2 fix: minor updates
• ec388f1 sync: update 3 files from source repository (#152)
• 597567d sync: update 5 files from source repository (#153)