Bump rack from 2.2.3 to 2.2.6.2 in /hailstorm-gem

Bumps [rack](https://github.com/rack/rack) from 2.2.3 to 2.2.6.2.
- [Release notes](https://github.com/rack/rack/releases)
- [Changelog](https://github.com/rack/rack/blob/main/CHANGELOG.md)
- [Commits](rack/rack@2.2.3...v2.2.6.2)

---
updated-dependencies:
- dependency-name: rack
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

hailstorm-gem/Gemfile.lock

@@ -99,13 +99,16 @@ GEM
     docile (1.3.2)
     erubi (1.9.0)
     erubis (2.7.0)
+    ffi (1.13.1)
     ffi (1.13.1-java)
     haikunator (1.1.0)
     i18n (1.8.5)
       concurrent-ruby (~> 1.0)
     jdbc-mysql (5.1.47)
     jmespath (1.4.0)
+    json (2.3.1)
     json (2.3.1-java)
+    linecache (1.3.1)
     linecache (1.3.1-java)
     loofah (2.6.0)
       crass (~> 1.0.2)
@@ -125,7 +128,7 @@ GEM
       middleware
       thor
       thread_safe
-    rack (2.2.3)
+    rack (2.2.6.2)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails-dom-testing (2.0.3)
@@ -177,6 +180,7 @@ GEM
       ffi (>= 1.0.0)
     terminal-table (1.6.0)
     thor (1.0.1)
+    thread_safe (0.3.6)
     thread_safe (0.3.6-java)
     tzinfo (1.2.7)
       thread_safe (~> 0.1)
@@ -187,6 +191,7 @@ PLATFORMS
   java
   universal-java-1.8
   universal-java-11
+  x86_64-linux
 
 DEPENDENCIES
   activerecord-jdbcmysql-adapter (~> 60.2)