Update pghero to version 3.1.0 (#18922)

Co-authored-by: depfu[bot] <23717796+depfu[bot]@users.noreply.github.com>

Gemfile

@@ -71,7 +71,7 @@ gem "parallel", "~> 1.22" # Run any kind of code in parallel processes
 gem "pg", "~> 1.4" # Pg is the Ruby interface to the PostgreSQL RDBMS
 gem "pg_query", ">= 0.9.0" # Allows PGHero to analyze queries
 gem "pg_search", "~> 2.3.6" # PgSearch builds Active Record named scopes that take advantage of PostgreSQL's full text search
-gem "pghero", "~> 2.8" # Dashboard for Postgres
+gem "pghero", "~> 3.1" # Dashboard for Postgres
 gem "puma", "~> 5.6.4" # Puma is a simple, fast, threaded, and highly concurrent HTTP 1.1 server
 gem "pundit", "~> 2.2" # Object oriented authorization for Rails applications
 gem "rack-attack", "~> 6.6.1" # Used to throttle requests to prevent brute force attacks

Gemfile.lock

@@ -498,7 +498,7 @@ GEM
     mini_magick (4.11.0)
     mini_mime (1.1.2)
     mini_portile2 (2.8.0)
-    minitest (5.16.3)
+    minitest (5.17.0)
     modis (4.0.1)
       activemodel (>= 5.2)
       activesupport (>= 5.2)
@@ -596,8 +596,8 @@ GEM
     pg_search (2.3.6)
       activerecord (>= 5.2)
       activesupport (>= 5.2)
-    pghero (2.8.3)
-      activerecord (>= 5)
+    pghero (3.1.0)
+      activerecord (>= 6)
     pry (0.14.1)
       coderay (~> 1.1)
       method_source (~> 1.0)
@@ -1040,7 +1040,7 @@ DEPENDENCIES
   pg (~> 1.4)
   pg_query (>= 0.9.0)
   pg_search (~> 2.3.6)
-  pghero (~> 2.8)
+  pghero (~> 3.1)
   pry (~> 0.14)
   pry-rails (~> 0.3)
   puma (~> 5.6.4)