ci: Remove scheduled build for beta, and fix the inputs (no-changelog)

docker/images/n8n-custom/Dockerfile

@@ -1,5 +1,4 @@
 ARG NODE_VERSION=18
-ARG N8N_RELEASE_TYPE=dev
 
 # 1. Create an image to build n8n
 FROM n8nio/base:${NODE_VERSION} as builder
@@ -26,6 +25,7 @@ RUN rm -rf patches .npmrc *.yaml node_modules/.cache packages/**/node_modules/.c
 
 # 2. Start with a new clean image with just the code that is needed to run n8n
 FROM n8nio/base:${NODE_VERSION}
+ARG N8N_RELEASE_TYPE=dev
 COPY --from=builder /home/node /usr/local/lib/node_modules/n8n
 RUN ln -s /usr/local/lib/node_modules/n8n/packages/cli/bin/n8n /usr/local/bin/n8n