Bump pg from 1.6.0 to 1.6.1 (#449)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Gemfile.lock

@@ -323,10 +323,12 @@ GEM
     parser (3.3.9.0)
       ast (~> 2.4.1)
       racc
-    pg (1.6.0)
-    pg (1.6.0-aarch64-linux)
-    pg (1.6.0-arm64-darwin)
-    pg (1.6.0-x86_64-linux)
+    pg (1.6.1)
+    pg (1.6.1-aarch64-linux)
+    pg (1.6.1-aarch64-linux-musl)
+    pg (1.6.1-arm64-darwin)
+    pg (1.6.1-x86_64-linux)
+    pg (1.6.1-x86_64-linux-musl)
     pp (0.6.2)
       prettyprint
     prettyprint (0.2.0)