Generate downloads.json files for nightly builds
We currently don't generate downloads.json
files in https://nightlies.tbb.torproject.org/nightly-updates/updates/ (create_downloads_json
is not set in tools/signing/nightly/update-responses-base-config.yml
).
For easier testing of changes to this file (for example for multi-locales builds, #40254 (closed) and #40110 (closed)), we should generate them.