Update dependency pg to v1.6.0 (#10834)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Gemfile.lock

@@ -404,7 +404,8 @@ GEM
       ast (~> 2.4.1)
       racc
     parslet (2.0.0)
-    pg (1.5.9)
+    pg (1.6.0-arm64-darwin)
+    pg (1.6.0-x86_64-linux)
     pg_search (2.3.7)
       activerecord (>= 6.1)
       activesupport (>= 6.1)