Bump launchdarkly-server-sdk from 8.4.1 to 8.4.2 (#4680)

Bumps [launchdarkly-server-sdk](https://github.com/launchdarkly/ruby-server-sdk) from 8.4.1 to 8.4.2.
- [Release notes](https://github.com/launchdarkly/ruby-server-sdk/releases)
- [Changelog](https://github.com/launchdarkly/ruby-server-sdk/blob/main/CHANGELOG.md)
- [Commits](launchdarkly/ruby-server-sdk@8.4.1...8.4.2)

---
updated-dependencies:
- dependency-name: launchdarkly-server-sdk
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -325,7 +325,7 @@ GEM
       kaminari-core (= 1.2.2)
     kaminari-core (1.2.2)
     language_server-protocol (3.17.0.3)
-    launchdarkly-server-sdk (8.4.1)
+    launchdarkly-server-sdk (8.4.2)
       concurrent-ruby (~> 1.1)
       http (>= 4.4.0, < 6.0.0)
       json (~> 2.3)
@@ -987,7 +987,7 @@ CHECKSUMS
   kaminari-activerecord (1.2.2) sha256=0dd3a67bab356a356f36b3b7236bcb81cef313095365befe8e98057dd2472430
   kaminari-core (1.2.2) sha256=3bd26fec7370645af40ca73b9426a448d09b8a8ba7afa9ba3c3e0d39cdbb83ff
   language_server-protocol (3.17.0.3) sha256=3d5c58c02f44a20d972957a9febe386d7e7468ab3900ce6bd2b563dd910c6b3f
-  launchdarkly-server-sdk (8.4.1) sha256=10edd22a6fcf4be19f06eb1237f40d4ca9a5ad11a0b3ac67ce8689c28cba7795
+  launchdarkly-server-sdk (8.4.2) sha256=36cdf34777f80687ee34acd0bd563b00153f4b24fe12be5eff15c4708be65ec3
   launchy (3.0.1) sha256=b7fa60bda0197cf57614e271a250a8ca1f6a34ab889a3c73f67ec5d57c8a7f2c
   ld-eventsource (2.2.2) sha256=5ea087a6f06bbd8e325d2c1aaead50f37f13d025b952985739e9380a78a96beb
   letter_opener (1.10.0) sha256=2ff33f2e3b5c3c26d1959be54b395c086ca6d44826e8bf41a14ff96fdf1bdbb2