Fix typo in "categeory" (additional e) and update specs

config/locales/en.yml

@@ -103,7 +103,7 @@ en:
     errors:
       models:
         enterprise_fee:
-          inherit_tax_requires_per_item_calculator: "Inheriting the tax categeory requires a per-item calculator."
+          inherit_tax_requires_per_item_calculator: "Inheriting the tax category requires a per-item calculator."
         spree/image:
           attributes:
             attachment:

spec/models/enterprise_fee_spec.rb

@@ -47,7 +47,7 @@ RSpec.describe EnterpriseFee do
           )
           expect(subject.save).to eq false
           expect(subject.errors.full_messages.first).to eq(
-            "Inheriting the tax categeory requires a per-item calculator."
+            "Inheriting the tax category requires a per-item calculator."
           )
         end
       end

spec/system/admin/enterprise_fees_spec.rb

@@ -154,7 +154,7 @@ RSpec.describe '
       # editing to an invalid combination
       select 'Flat Rate (per order)', from: "#{prefix}_calculator_type"
       expect{ click_button 'Update' }.not_to change { fee.reload.calculator_type }
-      expect(page).to have_content "Inheriting the tax categeory requires a per-item calculator."
+      expect(page).to have_content "Inheriting the tax category requires a per-item calculator."
     end
   end
 
@@ -299,7 +299,7 @@ RSpec.describe '
       end
 
       context "an error message is displayed" do
-        message = 'Inheriting the tax categeory requires a per-item calculator.'
+        message = 'Inheriting the tax category requires a per-item calculator.'
         it_behaves_like "setting it up", 'Inherit From Product',
                         'Flat Rate (per order)', message, 0
       end