Rename secrets using a swh-mirror prefix
The previous names were very generic, and they're stored docker-swarm-wide, so could conflict with other secrets.
Test Plan
Updating docs to match in another diff
Migrated from D6968 (view on Phabricator)
The previous names were very generic, and they're stored docker-swarm-wide, so could conflict with other secrets.
Updating docs to match in another diff
Migrated from D6968 (view on Phabricator)