Bump @babel/plugin-transform-modules-systemjs in /client_js

Bumps [@babel/plugin-transform-modules-systemjs](https://github.com/babel/babel/tree/HEAD/packages/babel-plugin-transform-modules-systemjs) from 7.29.0 to 7.29.4.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.29.4/packages/babel-plugin-transform-modules-systemjs)

---
updated-dependencies:
- dependency-name: "@babel/plugin-transform-modules-systemjs"
  dependency-version: 7.29.4
  dependency-type: indirect
...

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

Author: dependabot[bot]

client_js/yarn.lock

@@ -507,8 +507,8 @@
     "@babel/helper-plugin-utils" "^7.28.6"
 
 "@babel/plugin-transform-modules-systemjs@^7.29.0":
-  version "7.29.0"
-  resolved "https://registry.npmjs.org/@babel/plugin-transform-modules-systemjs/-/plugin-transform-modules-systemjs-7.29.0.tgz"
+  version "7.29.4"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-modules-systemjs/-/plugin-transform-modules-systemjs-7.29.4.tgz#f621105da99919c15cf4bde6fcc7346ef95e7b20"
   dependencies:
     "@babel/helper-module-transforms" "^7.28.6"
     "@babel/helper-plugin-utils" "^7.28.6"
@@ -3165,7 +3165,6 @@ queue-microtask@^1.2.2:
   version "1.2.3"
   resolved "https://registry.npmjs.org/queue-microtask/-/queue-microtask-1.2.3.tgz"
 
-
 react-is@^18.0.0:
   version "18.3.1"
   resolved "https://registry.npmjs.org/react-is/-/react-is-18.3.1.tgz"
@@ -3261,7 +3260,6 @@ run-parallel@^1.1.9:
   dependencies:
     queue-microtask "^1.2.2"
 
-
 "safer-buffer@>= 2.1.2 < 3.0.0":
   version "2.1.2"
   resolved "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz"