Fix GITHUB_OUTPUT failure from multiline jq dispatch payload - #1137

Summary

• Dev and prod deploy workflows built a client_payload with jq -n, which pretty-prints JSON across multiple lines.
• Writing that value as payload=... to $GITHUB_OUTPUT is invalid: GitHub Actions only accepts a single name=value line (or a heredoc).
• That caused the “Build Lambda-Recipes dispatch payload” step to fail with Invalid format ' "wrangles_version": ...'.

Fix

• Use jq -nc in .github/workflows/deploy-dev.yml and .github/workflows/publish-tagged.yml so the payload is a single compact JSON line.
• No change to payload fields, attribution, or Lambda-Recipes dispatch behavior.