Add Workflows protobuf

Bug: twpowertools:74
Change-Id: I93b9d8bd8e872e30e048e005d0688fe8a5399c8f
diff --git a/Makefile b/Makefile
index bf2a1e2..eec974f 100644
--- a/Makefile
+++ b/Makefile
@@ -9,6 +9,8 @@
 	(cd src/killSwitch && \
 		protoc -I=. --js_out=import_style=commonjs_strict:. api_proto/*.proto && \
 		protoc -I. --grpc-web_out=import_style=commonjs,mode=grpcwebtext:. api_proto/*.proto)
+	(cd src/workflows && \
+		protoc -I=. --js_out=import_style=commonjs_strict:. proto/*.proto)
 
 node_deps:
 	npm ci --no-save