Update golang

Changes:

- docker-library/golang@b22b41f: Merge pull request docker-library/golang#355 from infosiftr/alpine-386
- docker-library/golang@e069ef4: Update GO386 to "softfloat" in 1.16+

library/golang

@@ -13,12 +13,12 @@ Directory: 1.16-rc/buster
 
 Tags: 1.16beta1-alpine3.13, 1.16-rc-alpine3.13, rc-alpine3.13, 1.16beta1-alpine, 1.16-rc-alpine, rc-alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 0300e67182c4e18538e4aab6dd0a4630986facfb
+GitCommit: e069ef401a3eee2d16b5ad4dce939eaa02ae1bd1
 Directory: 1.16-rc/alpine3.13
 
 Tags: 1.16beta1-alpine3.12, 1.16-rc-alpine3.12, rc-alpine3.12
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 2d03ce7ef01477465c84c13d68818ab2bedc7b16
+GitCommit: e069ef401a3eee2d16b5ad4dce939eaa02ae1bd1
 Directory: 1.16-rc/alpine3.12
 
 Tags: 1.16beta1-windowsservercore-1809, 1.16-rc-windowsservercore-1809, rc-windowsservercore-1809