initial version and other fixes

test: fixed tests (caarlos0#44)

Signed-off-by: Carlos A Becker <caarlos0@gmail.com>

feat: support multiple tags at the same commit (caarlos0#40)

* feat: support multiple tags at the same commit

Signed-off-by: Carlos Alexandro Becker <caarlos0@gmail.com>

* test: added more

Signed-off-by: Carlos Alexandro Becker <caarlos0@gmail.com>

docs: using docker

Signed-off-by: Carlos Alexandro Becker <caarlos0@gmail.com>

ci: goreleaser workflow

Signed-off-by: Carlos Alexandro Becker <caarlos0@gmail.com>

feat: Add --pattern to filter possible tags (caarlos0#32)

Based on @KEANO89's caarlos0#20. Allows for only considering tags matching a glob.

Signed-off-by: Andrew Bayer <andrew.bayer@gmail.com>