switch to debian:buster slim and install make

Makefile

@@ -211,8 +211,7 @@ push: $(CONTAINER_DOTFILES)
 # TODO: Upstream was using manifest-tool and gcloud commands. Needs update
 manifest-list: # @HELP builds a manifest list of containers for all platforms
 manifest-list: all-container
-	@export DOCKER_CLI_EXPERIMENTAL=enabled  &&                              \
-	for bin in $(BINS); do                                                   \
+	@for bin in $(BINS); do                                                  \
 		docker manifest create $(REGISTRY)/$$bin:$(VERSION);                   \
 		for platform in $(ALL_PLATFORMS); do                                   \
 			docker manifest add --arch $$(echo $$platform | cut -d/ -f2)         \