Fix spec of write/3 of Instream.Connection.{QueryRunnerV1, QueryRunnnerV2}

[nallwhy]

Following Instream.Connection, write/3 of Instream.Connection.{QueryRunnerV1, QueryRunnnerV2} take its 3rd param as module not map.

      @impl Connection
      def write(points, opts \\ [])

      def write(point, opts) when is_map(point), do: write([point], opts)

      def write(points, opts) when is_list(points) do
        case config(:version) do
          :v2 -> QueryRunnerV2.write(points, opts, __MODULE__)
          _ -> QueryRunnerV1.write(points, opts, __MODULE__)
        end
      end

Those errors break my dialyzer.

lib/instream/connection.ex:109:call
The function call will not succeed.

Instream.Connection.QueryRunnerV2.write(_ :: any(), _ :: any(), MyModule)

breaks the contract
(map() | [map()], Keyword.t(), map()) :: any()

________________________________________________________________________________
lib/instream/connection.ex:110:call
The function call will not succeed.

Instream.Connection.QueryRunnerV1.write(_ :: any(), _ :: any(), MyModule)

breaks the contract
(map() | [map()], Keyword.t(), map()) :: any()

[coveralls]

Coverage remained the same at 76.852% when pulling cefbac1 on nallwhy:fix_spec_of_write_of_query_runners into 05360f9 on mneudert:master.

[mneudert]

❤️ 💚 💙 💛 💜

At least the dialyzer output was rather helpful in this case. I will additionally try to modify the CI stage to check those cases with real modules. Was broken far too long to not catch it 😅