Release v1.2.0

Changelog

5078cad Update cosign to v1.2.0
43df878 use .cosing directory to perform all installation
49363e8 ci: test case to check if the git repo is dirty

• changes download URL for cosign binary to github.com instead of GCS

Release v1.1.0

• Update default cosign installer to use release v1.1.0
• changes download URL for cosign binary to github.com instead of GCS

v1.0.0

A v1 release of cosign-installer to coincide with cosign's v1.0.0

• changes download URL for cosign binary to github.com instead of GCS

v3.0.5

What's Changed

• download cosign releases from GitHub rather than GCS by @bobcallaway in #126

Full Changelog: v3.0.4...v3.0.5