Update r-base directory to now include latest/

library/r-base

@@ -5,4 +5,4 @@ GitRepo: https://github.com/rocker-org/rocker.git
 Tags: 4.0.0, latest
 Architectures: amd64, arm64v8
 GitCommit: 1286d1fa0165a06b93ea9c4cebd94a54cbf86227
-Directory: r-base
+Directory: r-base/latest