fix: server Dockerfile - corrected copying of package-lock.json

backend/Dockerfile

@@ -2,7 +2,7 @@ FROM node:16-alpine
 
 WORKDIR /usr/src
 
-COPY ["package.json", "package-lock.json*", "./"]
+COPY ["package.json", "package-lock.json", "./"]
 RUN npm install
 ENV PATH=/usr/src/node_modules/.bin:$PATH