Fix randomly failing tests

[IvanIvanoff]

Changes

When testing that some function was not called when mocked, other tests
from the same test suite might interfere, if the call a function with
the same arguments. Fix by making each function use different from-to
arguments.

Improve the Sanbase.FailedTestFormatter to handle this error:

anbaseWeb.Graphql.ApiCallDataApiTest [test/sanbase_web/graphql/clickhouse/api_call_data_api_test.exs]
  * test export get_metric api calls with the metric and slug as arguments [L#16]�[33mwarning:�[0m Unexpected failed test format.
  (sanbase 0.0.1) lib/mix/failure_test_formatter.ex:32: Sanbase.FailedTestFormatter.handle_cast/2
  (stdlib 5.2) gen_server.erl:1121: :gen_server.try_handle_cast/3
  (stdlib 5.2) gen_server.erl:1183: :gen_server.handle_msg/6
  (stdlib 5.2) proc_lib.erl:241: :proc_lib.init_p_do_apply/3

�[31m
  * test export get_metric api calls with the metric and slug as arguments (6638.4ms) [L#16]�[0m

  1) test export get_metric api calls with the metric and slug as arguments (SanbaseWeb.Graphql.ApiCallDataApiTest)
     �[1m�[30mtest/sanbase_web/graphql/clickhouse/api_call_data_api_test.exs:16�[0m
     �[31m** (exit) exited in: GenServer.call(:api_call_exporter, :flush, 5000)
         ** (EXIT) time out�[0m
     �[36mcode: �[0m|> Sanbase.Mock.run_with_mocks(fn ->
     �[36mstacktrace:�[0m
       (elixir 1.16.0) lib/gen_server.ex:1114: GenServer.call/3
       test/sanbase_web/graphql/clickhouse/api_call_data_api_test.exs:37: anonymous fn/3 in SanbaseWeb.Graphql.ApiCallDataApiTest."test export get_metric api calls with the metric and slug as arguments"/1
       (sanbase 0.0.1) test/support/mock.ex:97: Sanbase.Mock.run_with_mocks/2
       test/sanbase_web/graphql/clickhouse/api_call_data_api_test.exs:24: (test)

Ticket

Checklist:

• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• I have tried to find clearer solution before commenting hard-to-understand parts of code
• I have added tests that prove my fix is effective or that my feature works