Disable silly credo rules and fix dialyzer error

ParenthesesOnZeroArtiyDefs conflicts with the formatter and PipeChainStart
is dumb (IMO)

.credo.exs

@@ -81,7 +81,7 @@
         {Credo.Check.Readability.ModuleAttributeNames},
         {Credo.Check.Readability.ModuleDoc},
         {Credo.Check.Readability.ModuleNames},
-        {Credo.Check.Readability.ParenthesesOnZeroArityDefs},
+        {Credo.Check.Readability.ParenthesesOnZeroArityDefs, false},
         {Credo.Check.Readability.ParenthesesInCondition},
         {Credo.Check.Readability.PredicateFunctionNames},
         {Credo.Check.Readability.PreferImplicitTry},
@@ -102,7 +102,7 @@
         {Credo.Check.Refactor.NegatedConditionsInUnless},
         {Credo.Check.Refactor.NegatedConditionsWithElse},
         {Credo.Check.Refactor.Nesting},
-        {Credo.Check.Refactor.PipeChainStart},
+        {Credo.Check.Refactor.PipeChainStart, false},
         {Credo.Check.Refactor.UnlessWithElse},
 
         {Credo.Check.Warning.BoolOperationOnSameValues},

lib/wallaby/experimental/chrome.ex

@@ -206,8 +206,8 @@ defmodule Wallaby.Experimental.Chrome do
   end
 
   @doc false
-  @spec start_session([start_session_opts]) :: {:ok, Session.t()}
-  def start_session(opts) do
+  @spec start_session([start_session_opts]) :: Wallaby.Driver.on_start_session()
+  def start_session(opts \\ []) do
     {:ok, base_url} = Chromedriver.base_url()
     create_session_fn = Keyword.get(opts, :create_session_fn, &WebdriverClient.create_session/2)
 

lib/wallaby/experimental/selenium.ex

@@ -91,7 +91,7 @@ defmodule Wallaby.Experimental.Selenium do
   end
 
   @doc false
-  @spec start_session([start_session_opts]) :: {:ok, Session.t()}
+  @spec start_session([start_session_opts]) :: Wallaby.Driver.on_start_session()
   def start_session(opts \\ []) do
     base_url = Keyword.get(opts, :remote_url, "http://localhost:4444/wd/hub/")
     create_session_fn = Keyword.get(opts, :create_session_fn, &WebdriverClient.create_session/2)