chore: Bump version to 0.6.0, fix tests

lib/parrhesia/storage/adapters/memory/store.ex

@@ -22,16 +22,7 @@ defmodule Parrhesia.Storage.Adapters.Memory.Store do
     audit_logs: []
   }
 
-  def ensure_started do
-    with :ok <- ensure_agent_started() do
-      Agent.get(@name, fn state ->
-        ensure_tables_started()
-        state
-      end)
-
-      :ok
-    end
-  end
+  def ensure_started, do: start_store()
 
   def put_event(event_id, event) when is_binary(event_id) and is_map(event) do
     :ok = ensure_started()
@@ -182,14 +173,6 @@ defmodule Parrhesia.Storage.Adapters.Memory.Store do
     Agent.get_and_update(@name, fun)
   end
 
-  defp ensure_agent_started do
-    if Process.whereis(@name) do
-      :ok
-    else
-      start_store()
-    end
-  end
-
   defp start_store do
     case Agent.start_link(&init_state/0, name: @name) do
       {:ok, _pid} -> :ok