rescue from all exceptions in `ConnectionManagement#call`

Fixes #11497

As `ActiveRecord::ConnectionAdapters::ConnectionManagement` middleware does not rescue from Exception (but only from StandardError),
the Connection Pool quickly runs out of connections when multiple erroneous Requests come in right after each other.

Recueing from all exceptions and not just StandardError, fixes this behaviour.

1 files changed, 2 insertions, 2 deletions

diff --git a/activerecord/test/cases/connection_management_test.rb b/activerecord/test/cases/connection_management_test.rb
index fe1b40d884..df17732fff 100644
--- a/activerecord/test/cases/connection_management_test.rb
+++ b/activerecord/test/cases/connection_management_test.rb
@@ -80,9 +80,9 @@ module ActiveRecord
       end
 
       def test_connections_closed_if_exception
-        app       = Class.new(App) { def call(env); raise; end }.new
+        app       = Class.new(App) { def call(env); raise NotImplementedError; end }.new
         explosive = ConnectionManagement.new(app)
-        assert_raises(RuntimeError) { explosive.call(@env) }
+        assert_raises(NotImplementedError) { explosive.call(@env) }
         assert !ActiveRecord::Base.connection_handler.active_connections?
       end