Store lsif ci artifact as gzip

app/models/ci/job_artifact.rb

@@ -42,6 +42,7 @@ module Ci
       metrics: :gzip,
       metrics_referee: :gzip,
       network_referee: :gzip,
+      lsif: :gzip,
 
       # All these file formats use `raw` as we need to store them uncompressed
       # for Frontend to fetch the files and do analysis
@@ -53,8 +54,7 @@ module Ci
       dast: :raw,
       license_management: :raw,
       license_scanning: :raw,
-      performance: :raw,
-      lsif: :raw
+      performance: :raw
     }.freeze
 
     TYPE_AND_FORMAT_PAIRS = INTERNAL_TYPES.merge(REPORT_TYPES).freeze

spec/factories/ci/job_artifacts.rb

@@ -141,11 +141,11 @@ FactoryBot.define do
 
     trait :lsif do
       file_type { :lsif }
-      file_format { :raw }
+      file_format { :gzip }
 
       after(:build) do |artifact, evaluator|
         artifact.file = fixture_file_upload(
-          Rails.root.join('spec/fixtures/lsif.json.gz'), 'application/octet-stream')
+          Rails.root.join('spec/fixtures/lsif.json.gz'), 'application/x-gzip')
       end
     end