fix: Upgrade faker to be compatible with Elixir 1.17

[joshlarson]

This removes the following warning, which appears any time we run any test:

warning: using map.field notation (without parentheses) to invoke function Faker.Random.Elixir.random_uniform() is deprecated, you must add parentheses instead: remote.function()
  (faker 0.18.0) lib/faker.ex:109: Faker.random_uniform/0
  (faker 0.18.0) lib/faker/address.ex:188: Faker.Address.latitude/0
  (dotcom 0.0.1) test/support/factories/stops/stop.ex:30: Test.Support.Factories.Stops.Stop.stop_factory/0
  (ex_machina 2.8.0) lib/ex_machina.ex:228: ExMachina.build/3
  (elixir 1.17.0) lib/stream.ex:1623: Stream.do_repeatedly/3
  (elixir 1.17.0) lib/enum.ex:3532: Enum.take/2
  test/stops/route_stops_test.exs:530: Stops.RouteStopsTest."test by_direction/2 returns a list of stops in one direction in the correct order doesn't crash if we didn't have stops and/or shapes"/1
  (ex_unit 1.17.0) lib/ex_unit/runner.ex:485: ExUnit.Runner.exec_test/2
  (ex_unit 1.17.0) lib/ex_unit/capture_log.ex:113: ExUnit.CaptureLog.with_log/2
  (ex_unit 1.17.0) lib/ex_unit/runner.ex:434: anonymous fn/3 in ExUnit.Runner.maybe_capture_log/3
  (stdlib 6.0) timer.erl:590: :timer.tc/2
  (ex_unit 1.17.0) lib/ex_unit/runner.ex:407: anonymous fn/6 in ExUnit.Runner.spawn_test_monitor/4

There's an open issue on the Faker repo (actually two) to cut a new release, but for now, in order to get Faker to run without warnings, we need to grab a specific SHA.

[thecristen]

Didn't realize they'd finally fixed this on their end, nice 🥳