Update golang

Changes:

- https://github.com/docker-library/golang/commit/7b92612: Merge pull request https://github.com/docker-library/golang/pull/449 from infosiftr/go-bootstrap
- https://github.com/docker-library/golang/commit/3d3c936: Fix 1.20 builds on mips and arm32v5
- https://github.com/docker-library/golang/commit/3589c79: Update generated README

library/golang

@@ -8,12 +8,12 @@ GitRepo: https://github.com/docker-library/golang.git
 Tags: 1.20rc1-bullseye, 1.20-rc-bullseye
 SharedTags: 1.20rc1, 1.20-rc
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, mips64le, ppc64le, s390x
-GitCommit: b922c120a56fea4f0d0e48a3273558b2bf45b019
+GitCommit: 3d3c9360ed0088ea68261e717f9547e4c1f1c48e
 Directory: 1.20-rc/bullseye
 
 Tags: 1.20rc1-buster, 1.20-rc-buster
 Architectures: amd64, arm32v7, arm64v8, i386
-GitCommit: b922c120a56fea4f0d0e48a3273558b2bf45b019
+GitCommit: 3d3c9360ed0088ea68261e717f9547e4c1f1c48e
 Directory: 1.20-rc/buster
 
 Tags: 1.20rc1-alpine3.17, 1.20-rc-alpine3.17, 1.20rc1-alpine, 1.20-rc-alpine