Switch rules_k8s to go-containerregistry

PRs that migrate the resolver from python to Go

• Remove python resolver (#459)
• Comment why the string resolver ignores all errors (#447)
• Go resolver should return strings as is on any kind of error (#446)
• Add resolver test case for empty YAML doc (#445)
• Support resolving YAML streams in Go resolver (#444)
• Use go-containerregistry API that supports schema 1 images in resolver (#442)
• Complete the implementation of the Go resolver (#435)

Features

Fixes

• Update bazel_skylib + rules_go (#458)
• Update dependency com_github_grpc_grpc to v1.24.3 (#456)
• Update rules_python commit hash to 230f6d1 (#454)
• update grpc + protobuf + go (#453)
• Update rules_python commit hash to f46e953 (#451)
• Update io_bazel_rules_docker commit hash to 7476c25 (#450)
• depset transitive expects sequence of depsets (#441)
• Update rules_python commit hash to 5aa465d (#439)
• Update io_bazel_rules_docker commit hash to 31f8a73 (#438)
• Update README for release v0.2 (#436)