ui: bump the rack group across 1 directory with 3 updates

Bumps the rack group with 1 update in the /server/src/main/webapp/WEB-INF/rails directory: [rack](https://github.com/rack/rack).


Updates `rack` from 2.2.23 to 3.2.6
- [Release notes](https://github.com/rack/rack/releases)
- [Changelog](https://github.com/rack/rack/blob/main/CHANGELOG.md)
- [Commits](rack/rack@v2.2.23...v3.2.6)

Updates `rack-session` from 1.0.2 to 2.1.2
- [Release notes](https://github.com/rack/rack-session/releases)
- [Changelog](https://github.com/rack/rack-session/blob/main/releases.md)
- [Commits](rack/rack-session@v1.0.2...v2.1.2)

Updates `rackup` from 1.0.1 to 2.3.1
- [Release notes](https://github.com/rack/rackup/releases)
- [Changelog](https://github.com/rack/rackup/blob/main/releases.md)
- [Commits](rack/rackup@v1.0.1...v2.3.1)

---
updated-dependencies:
- dependency-name: rack
  dependency-version: 3.2.5
  dependency-type: indirect
  update-type: version-update:semver-major
  dependency-group: rack
- dependency-name: rack-session
  dependency-version: 2.1.1
  dependency-type: indirect
  update-type: version-update:semver-major
  dependency-group: rack
- dependency-name: rackup
  dependency-version: 2.3.1
  dependency-type: indirect
  update-type: version-update:semver-major
  dependency-group: rack
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

server/src/main/webapp/WEB-INF/rails/Gemfile.lock

@@ -68,7 +68,6 @@ GEM
     drb (2.2.3)
     erubi (1.13.1)
     ffi (1.17.4-java)
-    ffi (1.17.4-x86_64-linux-gnu)
     ffi-compiler (1.4.2)
       ffi (>= 1.15.5)
       rake
@@ -98,14 +97,14 @@ GEM
     public_suffix (6.0.2)
     racc (1.8.1)
     racc (1.8.1-java)
-    rack (2.2.23)
-    rack-session (1.0.2)
-      rack (< 3)
+    rack (3.2.6)
+    rack-session (2.1.2)
+      base64 (>= 0.1.0)
+      rack (>= 3.0.0)
     rack-test (2.2.0)
       rack (>= 1.3)
-    rackup (1.0.1)
-      rack (< 3)
-      webrick
+    rackup (2.3.1)
+      rack (>= 3)
     rails-controller-testing (1.0.5)
       actionpack (>= 5.0.1.rc1)
       actionview (>= 5.0.1.rc1)
@@ -172,7 +171,6 @@ GEM
     tzinfo-data (1.2026.2)
       tzinfo (>= 1.0.0)
     useragent (0.16.11)
-    webrick (1.9.2)
     xpath (3.2.0)
       nokogiri (~> 1.8)
     zeitwerk (2.6.18)
@@ -220,7 +218,6 @@ CHECKSUMS
   drb (2.2.3) sha256=0b00d6fdb50995fe4a45dea13663493c841112e4068656854646f418fda13373
   erubi (1.13.1) sha256=a082103b0885dbc5ecf1172fede897f9ebdb745a4b97a5e8dc63953db1ee4ad9
   ffi (1.17.4-java) sha256=449281c799727413eb367e396a838328e767a41fd76a14ae2dfbee0c37f0a279
-  ffi (1.17.4-x86_64-linux-gnu) sha256=9d3db14c2eae074b382fa9c083fe95aec6e0a1451da249eab096c34002bc752d
   ffi-compiler (1.4.2) sha256=a9d69d5d9ced6f64776ddafa535867ad90e5740ad37bed7afb4de6e450da126e
   google-protobuf (4.34.1-java) sha256=b61f7f754842171af103130b94c72760888be271ce8cf79cdb1913e8f5674c5e
   google-protobuf (4.34.1-x86_64-linux-gnu) sha256=87088c9fd8e47b5b40ca498fc1195add6149e941ff7e81c532a5b0b8876d4cc9
@@ -237,10 +234,10 @@ CHECKSUMS
   public_suffix (6.0.2) sha256=bfa7cd5108066f8c9602e0d6d4114999a5df5839a63149d3e8b0f9c1d3558394
   racc (1.8.1) sha256=4a7f6929691dbec8b5209a0b373bc2614882b55fc5d2e447a21aaa691303d62f
   racc (1.8.1-java) sha256=54f2e6d1e1b91c154013277d986f52a90e5ececbe91465d29172e49342732b98
-  rack (2.2.23) sha256=a8fe9d7e07064770b8ec123663fded8a59ef7e2b6db5cda7173d45a5718ab69c
-  rack-session (1.0.2) sha256=a02115e5420b4de036839b9811e3f7967d73446a554b42aa45106af335851d76
+  rack (3.2.6) sha256=5ed78e1f73b2e25679bec7d45ee2d4483cc4146eb1be0264fc4d94cb5ef212c2
+  rack-session (2.1.2) sha256=595434f8c0c3473ae7d7ac56ecda6cc6dfd9d37c0b2b5255330aa1576967ffe8
   rack-test (2.2.0) sha256=005a36692c306ac0b4a9350355ee080fd09ddef1148a5f8b2ac636c720f5c463
-  rackup (1.0.1) sha256=ba86604a28989fe1043bff20d819b360944ca08156406812dca6742b24b3c249
+  rackup (2.3.1) sha256=6c79c26753778e90983761d677a48937ee3192b3ffef6bc963c0950f94688868
   rails-controller-testing (1.0.5) sha256=741448db59366073e86fc965ba403f881c636b79a2c39a48d0486f2607182e94
   rails-dom-testing (2.3.0) sha256=8acc7953a7b911ca44588bf08737bc16719f431a1cc3091a292bca7317925c1d
   rails-html-sanitizer (1.7.0) sha256=28b145cceaf9cc214a9874feaa183c3acba036c9592b19886e0e45efc62b1e89
@@ -265,7 +262,6 @@ CHECKSUMS
   tzinfo (2.0.6) sha256=8daf828cc77bcf7d63b0e3bdb6caa47e2272dcfaf4fbfe46f8c3a9df087a829b
   tzinfo-data (1.2026.2) sha256=7db0d3d3d53b8d7601fc183fccc8c6d056a3004e14eb59ea995bf6aec4ae10bc
   useragent (0.16.11) sha256=700e6413ad4bb954bb63547fa098dddf7b0ebe75b40cc6f93b8d54255b173844
-  webrick (1.9.2) sha256=beb4a15fc474defed24a3bda4ffd88a490d517c9e4e6118c3edce59e45864131
   xpath (3.2.0) sha256=6dfda79d91bb3b949b947ecc5919f042ef2f399b904013eb3ef6d20dd3a4082e
   zeitwerk (2.6.18) sha256=bd2d213996ff7b3b364cd342a585fbee9797dbc1c0c6d868dc4150cc75739781