Do not crash the whole background job if one type of report fails

Currently there is a problem with the container scanning reports on
staging environment which breaks all the other type of reports from
being ingested into the system.

With this change, we will at least ingest the findings for other report
types.

changelogs/unreleased/dont_crash_whole_background_job.yml

+---
+title: Do not crash the ingestion of all security reports if there is an invalid report
+  artifact
+merge_request: 49181
+author:
+type: fixed

ee/app/services/security/store_grouped_scans_service.rb

@@ -22,6 +22,8 @@ module Security
           store_scan_for(artifact, deduplicate)
         end
       end
+    rescue Gitlab::Ci::Parsers::ParserError => error
+      Gitlab::ErrorTracking.track_exception(error)
     end
 
     private

ee/spec/services/security/store_grouped_scans_service_spec.rb

@@ -36,6 +36,26 @@ RSpec.describe Security::StoreGroupedScansService do
 
     subject(:store_scan_group) { service_object.execute }
 
+    context 'when there is a parsing error' do
+      let(:expected_error) { Gitlab::Ci::Parsers::ParserError.new('Foo') }
+
+      before do
+        allow(Security::StoreScanService).to receive(:execute).and_raise(expected_error)
+        allow(Gitlab::ErrorTracking).to receive(:track_exception)
+      end
+
+      it 'does not propagate the error to the caller' do
+        expect { store_scan_group }.not_to raise_error
+      end
+
+      it 'tracks the error' do
+        store_scan_group
+
+        expect(Gitlab::ErrorTracking).to have_received(:track_exception).with(expected_error)
+      end
+    end
+
+    context 'when there is no error' do
       before do
         allow(Security::StoreScanService).to receive(:execute).and_return(true)
       end
@@ -79,4 +99,5 @@ RSpec.describe Security::StoreGroupedScansService do
         end
       end
     end
+  end
 end