Roll back dependency bunny/bunny to 0.6.0-alpha.1@dev

Author: mammatusphp-renovate-runner[bot]

composer.json

@@ -35,7 +35,7 @@
   },
   "require-dev": {
     "bbqueue/bunny": "dev-main",
-    "bunny/bunny": "^0.6@dev",
+    "bunny/bunny": "0.6.0-alpha.1@dev",
     "wyrihaximus/async-test-utilities": "^10.4.0",
     "wyrihaximus/makefiles": "^0.7.10"
   },