chore: update to connection_pool v3

Author: G-Rath

Gemfile.lock

@@ -108,7 +108,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.1.10)
-    connection_pool (2.3.0)
+    connection_pool (3.0.2)
     crass (1.0.6)
     date (3.3.4)
     docile (1.1.5)
@@ -172,12 +172,12 @@ GEM
     net-smtp (0.5.0)
       net-protocol
     nio4r (2.7.3)
-    nokogiri (1.14.3)
-      mini_portile2 (~> 2.8.0)
+    nokogiri (1.18.10)
+      mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
-    nokogiri (1.14.3-x86_64-darwin)
+    nokogiri (1.18.10-x86_64-darwin)
       racc (~> 1.4)
-    nokogiri (1.14.3-x86_64-linux)
+    nokogiri (1.18.10-x86_64-linux-gnu)
       racc (~> 1.4)
     notiffany (0.1.3)
       nenv (~> 0.1)