Save bundle config as local (#17188)

Some bundle options are saved as global user config and not project local.
Specially, `deployment` must be saved as local config to be run on copied environment

Dockerfile

@@ -71,8 +71,8 @@ RUN npm install -g yarn && \
 COPY Gemfile* package.json yarn.lock /opt/mastodon/
 
 RUN cd /opt/mastodon && \
-  bundle config set deployment 'true' && \
-  bundle config set without 'development test' && \
+  bundle config set --local deployment 'true' && \
+  bundle config set --local without 'development test' && \
 	bundle install -j$(nproc) && \
 	yarn install --pure-lockfile