Backport 3.5.x: Edit iiif_resource_resolver_spec for CI

spec/services/spotlight/iiif_resource_resolver_spec.rb

@@ -85,7 +85,7 @@
       it 'logs that the JSON was unparsable and falls through to an no-canvas error' do
         klass = described_class.name
         expect(Rails.logger).to receive(:warn).with(
-          a_string_matching(/#{klass} failed to parse #{iiif_manifest_url} with: \d{3}: unexpected token at '#{fixture_json}'/)
+          a_string_matching(/#{klass} failed to parse #{iiif_manifest_url} .* unexpected token at/)
         )
         expect { resolver.resolve! }.to raise_error(Spotlight::IiifResourceResolver::ManifestError)
       end