build: avoid /docs/api and /docs/doc/api upload

Fixes: https://github.com/nodejs/node/issues/12833
PR-URL: https://github.com/nodejs/node/pull/12957
Reviewed-By: João Reis <reis@janeasystems.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Michael Dawson <mhdawson@ibm.com>

Makefile

@@ -754,9 +754,9 @@ ifeq ($(XZ), 0)
 endif
 
 doc-upload: doc
-	ssh $(STAGINGSERVER) "mkdir -p nodejs/$(DISTTYPEDIR)/$(FULLVERSION)"
+	ssh $(STAGINGSERVER) "mkdir -p nodejs/$(DISTTYPEDIR)/$(FULLVERSION)/docs/"
 	chmod -R ug=rw-x+X,o=r+X out/doc/
-	scp -pr out/doc/ $(STAGINGSERVER):nodejs/$(DISTTYPEDIR)/$(FULLVERSION)/docs/
+	scp -pr out/doc/* $(STAGINGSERVER):nodejs/$(DISTTYPEDIR)/$(FULLVERSION)/docs/
 	ssh $(STAGINGSERVER) "touch nodejs/$(DISTTYPEDIR)/$(FULLVERSION)/docs.done"
 
 $(TARBALL)-headers: release-only