Bump shoulda-matchers from 5.3.0 to 6.4.0

Bumps [shoulda-matchers](https://github.com/thoughtbot/shoulda-matchers) from 5.3.0 to 6.4.0.
- [Release notes](https://github.com/thoughtbot/shoulda-matchers/releases)
- [Changelog](https://github.com/thoughtbot/shoulda-matchers/blob/main/CHANGELOG.md)
- [Commits](thoughtbot/shoulda-matchers@v5.3.0...v6.4.0)

---
updated-dependencies:
- dependency-name: shoulda-matchers
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Gemfile.lock

@@ -153,7 +153,7 @@ GEM
       activesupport (>= 3.2)
       elasticsearch (>= 1.0.0)
     coderay (1.1.3)
-    concurrent-ruby (1.2.3)
+    concurrent-ruby (1.3.4)
     connection_pool (2.4.1)
     content_disposition (1.0.0)
     counter_culture (1.11.0)
@@ -430,7 +430,7 @@ GEM
     mini_magick (4.12.0)
     mini_mime (1.1.5)
     mini_portile2 (2.8.6)
-    minitest (5.22.3)
+    minitest (5.25.1)
     mongo (2.20.0)
       bson (>= 4.14.1, < 6.0.0)
     msgpack (1.7.2)
@@ -676,7 +676,7 @@ GEM
       sentry-ruby (~> 5.15.2)
       sidekiq (>= 3.0)
     shellany (0.0.1)
-    shoulda-matchers (5.3.0)
+    shoulda-matchers (6.4.0)
       activesupport (>= 5.2.0)
     shrine (3.5.0)
       content_disposition (~> 1.0)
@@ -765,7 +765,7 @@ GEM
     websocket-driver (0.7.6)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
-    zeitwerk (2.6.13)
+    zeitwerk (2.6.17)
 
 PLATFORMS
   ruby