Switch back to pg_query

v2.1.0 incorporates the fixes in our fork and fixed a few other bugs.
See https://github.com/pganalyze/pg_query/blob/main/CHANGELOG.md for
more details.

Changelog: changed

Gemfile

@@ -305,11 +305,7 @@ gem 'sentry-raven', '~> 3.1'
 
 # PostgreSQL query parsing
 #
-# We need this fork until https://github.com/pganalyze/pg_query/pull/212
-# and https://github.com/pganalyze/pg_query/pull/213 are
-# released. gitlab-labkit will need to be updated to use the pg_query
-# version.
-gem 'gitlab-pg_query', '~> 2.0.4', require: 'pg_query'
+gem 'pg_query', '~> 2.1'
 
 gem 'premailer-rails', '~> 1.10.3'
 

Gemfile.lock

@@ -921,6 +921,8 @@ GEM
     peek (1.1.0)
       railties (>= 4.0.0)
     pg (1.2.3)
+    pg_query (2.1.0)
+      google-protobuf (>= 3.17.1)
     plist (3.6.0)
     png_quantizator (0.2.1)
     po_to_json (1.0.1)
@@ -1495,7 +1497,6 @@ DEPENDENCIES
   gitlab-markup (~> 1.7.1)
   gitlab-net-dns (~> 0.9.1)
   gitlab-omniauth-openid-connect (~> 0.4.0)
-  gitlab-pg_query (~> 2.0.4)
   gitlab-rdoc (~> 6.3.2)
   gitlab-sidekiq-fetcher (= 0.5.6)
   gitlab-styles (~> 6.2.0)
@@ -1585,6 +1586,7 @@ DEPENDENCIES
   parslet (~> 1.8)
   peek (~> 1.1)
   pg (~> 1.1)
+  pg_query (~> 2.1)
   png_quantizator (~> 0.2.1)
   premailer-rails (~> 1.10.3)
   prometheus-client-mmap (~> 0.12.0)