Remove master from versions and copy it from the latest. (#7980)

Makefile

@@ -222,7 +222,9 @@ build-docs:
 		mkdir -p ~/output/$${path_prefix} ; \
 		cp -r .vuepress/dist/* ~/output/$${path_prefix}/ ; \
 		cp ~/output/$${path_prefix}/index.html ~/output ; \
-	done < versions ;
+	done < versions ; \
+	mkdir -p ~/output/master ; \
+	cp -r .vuepress/dist/* ~/output/master/
 .PHONY: build-docs
 
 ###############################################################################
@@ -329,4 +331,3 @@ split-test-packages:$(BUILDDIR)/packages.txt
 	split -d -n l/$(NUM_SPLIT) $< $<.
 test-group-%:split-test-packages
 	cat $(BUILDDIR)/packages.txt.$* | xargs go test -mod=readonly -timeout=5m -race -coverprofile=$(BUILDDIR)/$*.profile.out
-

docs/versions

@@ -1,4 +1,3 @@
-master                  master
 v0.33.x                 v0.33
 v0.34.x                 v0.34
 v0.35.x                 v0.35