Add and apply RSpec/EmptyLineAfterExample rule

It was introduced in rubocop-rspec 1.36.0. We were already applying it
almost everywhere.

.rubocop.yml

@@ -324,6 +324,9 @@ RSpec/EmptyExampleGroup:
   Exclude:
     - spec/factories/**/*
 
+RSpec/EmptyLineAfterExample:
+  Enabled: true
+
 RSpec/EmptyLineAfterExampleGroup:
   Enabled: true
   Exclude:

spec/models/budget_spec.rb

@@ -217,6 +217,7 @@ describe Budget do
       budget.phase = "reviewing"
       expect(budget.investments_orders).to eq(["random"])
     end
+
     it "is random and price when ballotting and reviewing ballots" do
       budget.phase = "publishing_prices"
       expect(budget.investments_orders).to eq(["random", "price"])
@@ -225,6 +226,7 @@ describe Budget do
       budget.phase = "reviewing_ballots"
       expect(budget.investments_orders).to eq(["random", "price"])
     end
+
     it "is random and confidence_score in all other cases" do
       budget.phase = "selecting"
       expect(budget.investments_orders).to eq(["random", "confidence_score"])

spec/models/organization_spec.rb

@@ -7,15 +7,18 @@ describe Organization do
     it "is false when verified_at? is blank" do
       expect(subject.verified?).to be false
     end
+
     it "is true when verified_at? exists" do
       subject.verified_at = Time.current
       expect(subject.verified?).to be true
     end
+
     it "is false when the organization was verified and then rejected" do
       subject.verified_at = Time.current
       subject.rejected_at = Time.current + 1
       expect(subject.verified?).to be false
     end
+
     it "is true when the organization was rejected and then verified" do
       subject.rejected_at = Time.current
       subject.verified_at = Time.current + 1
@@ -27,15 +30,18 @@ describe Organization do
     it "is false when rejected_at? is blank" do
       expect(subject.rejected?).to be false
     end
+
     it "is true when rejected_at? exists" do
       subject.rejected_at = Time.current
       expect(subject.rejected?).to be true
     end
+
     it "is true when the organization was verified and then rejected" do
       subject.verified_at = Time.current
       subject.rejected_at = Time.current + 1
       expect(subject.rejected?).to be true
     end
+
     it "is false when the organization was rejected and then verified" do
       subject.rejected_at = Time.current
       subject.verified_at = Time.current + 1