Use GitHub releases to download Go versions. (actions#58)

v2 tag

Merge pull request actions#50 from actions/goenv

go env block

Update v2-beta tag

Merge pull request actions#48 from actions/matcher

More focused problem matcher regex

Merge pull request actions#47 from actions/binpath

add bin to path

Merge pull request actions#30 from hross/master

Change getFileName to do architecture lookups and add arm support

Update v1 tag

Merge pull request actions#20 from subosito/golang-dl

Use golang-dl release data

Deprecate version