Bump pg from 1.4.5 to 1.4.6

Bumps [pg](https://github.com/ged/ruby-pg) from 1.4.5 to 1.4.6.
- [Release notes](https://github.com/ged/ruby-pg/releases)
- [Changelog](https://github.com/ged/ruby-pg/blob/master/History.md)
- [Commits](ged/ruby-pg@v1.4.5...v1.4.6)

---
updated-dependencies:
- dependency-name: pg
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Gemfile.lock

@@ -1502,7 +1502,7 @@ GEM
       faraday (~> 1.4)
       faraday_middleware (~> 1)
     paypalhttp (1.0.1)
-    pg (1.4.5)
+    pg (1.4.6)
     pkg-config (1.5.1)
     pry (0.14.2)
       coderay (~> 1.1)