Deploy and restart indexers

That means quite a lot of things to do, i can think of those steps:

• stop indexers
• rebuild packages
  • swh-storage
  • swh-indexer
  • swh-loader-core
  • swh-deposit
  • swh-web
• Populate new db with the indexers' data (T870)
• Create a new swh-indexer storage manifest (possibly reuse the existing one, need to check that)
• Deploy new swh-indexer storage
• Fix multiple errors when first deployment arises
• Deploy fresh swh-indexer storage that works without errors :)
• Adapt and make sure loader-deposit still works
• Deploy swh-deposit and swh-loader-deposit accordingly
• update indexers's manifest data to point to that new storage
• update swh-web's manifest to add that new storage endpoint in its config
• Deploy updates on all azure workers
• Restart azure indexer workers
• Deploy updates on all the remaining workers

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Migrated from T872 (view on Phabricator)