Update gems

Fixes https://github.com/pmd/pmd.github.io/security/dependabot/8
Fixes CVE-2024-41123
Fixes GHSA-r55c-59qm-vjw6
Fixes https://github.com/pmd/pmd.github.io/security/dependabot/9
Fixes CVE-2024-41946
Fixes GHSA-5866-49gr-22v4
Fixes https://github.com/pmd/pmd.github.io/security/dependabot/10
Fixes CVE-2024-43398
Fixes GHSA-vmwr-mc7x-5vc3

Author: adangel

Gemfile.lock

@@ -6,15 +6,15 @@ GEM
     base64 (0.2.0)
     bigdecimal (3.1.8)
     colorator (1.1.0)
-    concurrent-ruby (1.3.3)
+    concurrent-ruby (1.3.4)
     csv (3.3.0)
     em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0)
     eventmachine (1.2.7)
     ffi (1.17.0-x86_64-linux-gnu)
     forwardable-extended (2.6.0)
-    google-protobuf (4.27.2-x86_64-linux)
+    google-protobuf (4.27.3-x86_64-linux)
       bigdecimal
       rake (>= 13)
     http_parser.rb (0.8.0)
@@ -56,7 +56,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.11.1)
       ffi (~> 1.0)
-    rexml (3.3.2)
+    rexml (3.3.6)
       strscan
     rouge (4.3.0)
     safe_yaml (1.0.5)