fix: use Time::Span for timeout settings

spec/mollie/config_spec.cr

@@ -5,13 +5,13 @@ describe Mollie do
     it "changes global the confguration" do
       Mollie.configure do |config|
         config.api_key = "my_key"
-        config.open_timeout = 1.5
-        config.read_timeout = 2.5
+        config.open_timeout = 1.5.seconds
+        config.read_timeout = 2.5.seconds
       end
 
       Mollie.config.api_key.should eq("my_key")
-      Mollie.config.open_timeout.should eq(1.5)
-      Mollie.config.read_timeout.should eq(2.5)
+      Mollie.config.open_timeout.should eq(1.5.seconds)
+      Mollie.config.read_timeout.should eq(2.5.seconds)
     end
   end
 end
@@ -25,13 +25,13 @@ describe Mollie::Config do
 
   describe "#open_timeout" do
     it "has a default open timeout" do
-      Mollie.config.open_timeout.should eq(60)
+      Mollie.config.open_timeout.should eq(60.seconds)
     end
   end
 
   describe "#read_timeout" do
     it "has a default read timeout" do
-      Mollie.config.read_timeout.should eq(60)
+      Mollie.config.read_timeout.should eq(60.seconds)
     end
   end
 

spec/spec_helper.cr

@@ -36,8 +36,8 @@ Spec.after_each do
   WebMock.reset
   Mollie.configure do |config|
     config.api_key = nil
-    config.open_timeout = 60
-    config.read_timeout = 60
+    config.open_timeout = 60.seconds
+    config.read_timeout = 60.seconds
     config.currency_decimals = {
       "ISK" => 0,
       "JPY" => 0,

src/mollie/config.cr

@@ -10,8 +10,8 @@ module Mollie
 
   class Config
     property api_key : String?
-    property open_timeout : Int32 | Float64 = 60
-    property read_timeout : Int32 | Float64 = 60
+    property open_timeout : Time::Span = 60.seconds
+    property read_timeout : Time::Span = 60.seconds
     property currency_decimals = {
       "ISK" => 0,
       "JPY" => 0,