[Backport 8.12] Upgrade transport to 8.4.1 (#2138)

(cherry picked from commit 8df91fce7c)

Co-authored-by: Josh Mock <joshua.mock@elastic.co>

package.json

@@ -83,7 +83,7 @@
     "zx": "^7.2.2"
   },
   "dependencies": {
-    "@elastic/transport": "^8.4.0",
+    "@elastic/transport": "^8.4.1",
     "tslib": "^2.4.0"
   },
   "tap": {
@@ -93,4 +93,4 @@
     "coverage": false,
     "check-coverage": false
   }
-}
+}