fix specs and comments changing push -> sync/fetch

ee/spec/models/geo/project_registry_spec.rb

@@ -224,7 +224,7 @@ describe Geo::ProjectRegistry do
       end
 
       context 'with a number of syncs' do
-        it 'returns the number of pushes' do
+        it 'returns the number of syncs' do
           2.times { Geo::ProjectHousekeepingService.new(project).increment! }
 
           expect(subject.syncs_since_gc).to eq(2)
@@ -233,7 +233,7 @@ describe Geo::ProjectRegistry do
     end
 
     describe '#increment_syncs_since_gc' do
-      it 'increments the number of pushes since the last GC' do
+      it 'increments the number of syncs since the last GC' do
         3.times { subject.increment_syncs_since_gc! }
 
         expect(subject.syncs_since_gc).to eq(3)
@@ -241,7 +241,7 @@ describe Geo::ProjectRegistry do
     end
 
     describe '#reset_syncs_since_gc' do
-      it 'resets the number of pushes since the last GC' do
+      it 'resets the number of syncs since the last GC' do
         3.times { subject.increment_syncs_since_gc! }
 
         subject.reset_syncs_since_gc!

ee/spec/services/geo/project_housekeeping_service_spec.rb

@@ -45,13 +45,13 @@ describe Geo::ProjectHousekeepingService do
         allow(service).to receive(:lease_key).and_return(:the_lease_key)
         allow(service).to receive(:try_obtain_lease).and_return(:the_uuid)
 
-        # At push 200
+        # At fetch 200
         expect(GitGarbageCollectWorker).to receive(:perform_async).with(project.id, :gc, :the_lease_key, :the_uuid)
           .exactly(1).times
-        # At push 50, 100, 150
+        # At fetch 50, 100, 150
         expect(GitGarbageCollectWorker).to receive(:perform_async).with(project.id, :full_repack, :the_lease_key, :the_uuid)
           .exactly(3).times
-        # At push 10, 20, ... (except those above)
+        # At fetch 10, 20, ... (except those above)
         expect(GitGarbageCollectWorker).to receive(:perform_async).with(project.id, :incremental_repack, :the_lease_key, :the_uuid)
           .exactly(16).times