chore (examples): cloud deployment of the phoenix liveview example

[kevin-dp]

This PR contains the necessary SST config for deploying the Phoenix liveview example to the cloud.

[github-actions]

Examples

• phoenix-liveview: https://liveview-app-backend-stage-pr-2193.examples.electric-sql.com/

[magnetised]

Looks great -- thanks for doing that. Think the sst code could do with some cleanup though

[magnetised]

weird having the whole phoenix/ecto migration machinery and then just using this... but understand that this is maybe all we need

[kevin-dp]

Indeed, but this is a common pattern across all examples. So best to keep it for now.

[codecov]

❌ 1 Tests Failed:

Tests completed	Failed	Passed	Skipped
2095	1	2094	974

View the top 1 failed test(s) by shortest run time

Elixir.Electric.Shapes.ConsumerTest::test transaction handling with real storage restarting a consumer doesn't lower the last known offset when only snapshot is present

Stack Traces | 0s run time

5) test transaction handling with real storage restarting a consumer doesn't lower the last known offset when only snapshot is present (Electric.Shapes.ConsumerTest)
     .../electric/shapes/consumer_test.exs:869
     ** (EXIT from #PID<0.5962.0>) an exception was raised:
         ** (ArgumentError) errors were found at the given arguments:

       * 1st argument: table name already exists

             (stdlib 6.2) :ets.new(:"Elixir.Electric.Shapes.ConsumerTest test transaction handling with real storage restarting a consumer doesn't lower the last known offset when only snapshot is present:lsn_tracker", [:protected, :named_table])
             (electric 1.0.13) lib/electric/lsn_tracker.ex:34: Electric.LsnTracker.create_table/1
             (electric 1.0.13) lib/electric/lsn_tracker.ex:5: Electric.LsnTracker.init/2
             (electric 1.0.13) .../electric/replication/shape_log_collector.ex:133: Electric.Replication.ShapeLogCollector.handle_call/3
             (gen_stage 1.2.1) lib/gen_stage.ex:1942: GenStage.handle_call/3
             (stdlib 6.2) gen_server.erl:2381: :gen_server.try_handle_call/4
             (stdlib 6.2) gen_server.erl:2410: :gen_server.handle_msg/6
             (stdlib 6.2) proc_lib.erl:329: :proc_lib.init_p_do_apply/3

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