🔖 Bump signals runtime dependents for 0.5.4

stream-helpers and worker depend on @effectionx/signals at runtime via
workspace:* (replaced with the exact version on publish), so they need a
patch release to ship the is() subscription-race fix to their consumers.

- @effectionx/stream-helpers 0.8.2 -> 0.8.3
- @effectionx/worker 0.5.2 -> 0.5.3

Author: Taras Mankovski

stream-helpers/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@effectionx/stream-helpers",
   "description": "Type-safe stream operators like filter, map, reduce, and forEach",
-  "version": "0.8.2",
+  "version": "0.8.3",
   "keywords": ["streams"],
   "type": "module",
   "main": "./dist/mod.js",

worker/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@effectionx/worker",
   "description": "Web Worker integration with two-way messaging and graceful shutdown",
-  "version": "0.5.2",
+  "version": "0.5.3",
   "keywords": ["platform"],
   "type": "module",
   "main": "./dist/mod.js",