Manual fixups from rubocop run

Rubocop automatically put this confusingly below

spec/lib/banzai/filter/relative_link_filter_spec.rb

@@ -336,9 +336,9 @@ describe Banzai::Filter::RelativeLinkFilter do
   end
 
   context 'with a valid ref' do
+    # force filter to use ref instead of commit
     let(:commit) { nil }
 
- # force filter to use ref instead of commit
     include_examples :valid_repository
   end
 

spec/lib/gitlab/prometheus/queries/deployment_query_spec.rb

@@ -5,7 +5,6 @@ require 'spec_helper'
 describe Gitlab::Prometheus::Queries::DeploymentQuery do
   let(:environment) { create(:environment, slug: 'environment-slug') }
   let(:deployment) { create(:deployment, environment: environment) }
-
   let(:client) { double('prometheus_client') }
 
   subject { described_class.new(client) }

spec/lib/gitlab/prometheus/queries/knative_invocation_query_spec.rb

@@ -7,7 +7,6 @@ describe Gitlab::Prometheus::Queries::KnativeInvocationQuery do
 
   let(:project) { create(:project) }
   let(:serverless_func) { Serverless::Function.new(project, 'test-name', 'test-ns') }
-
   let(:client) { double('prometheus_client') }
 
   subject { described_class.new(client) }