fix: upgrade redis from 4.6.11 to 4.6.12

Snyk has created this PR to upgrade redis from 4.6.11 to 4.6.12.

See this package in npm:
https://www.npmjs.com/package/redis

See this project in Snyk:
https://app.snyk.io/org/msimerson/project/ace22878-ae47-45cc-836b-8f5112b1aa89?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -27,7 +27,7 @@
   "homepage": "https://github.com/haraka/haraka-plugin-watch#readme",
   "dependencies": {
     "haraka-plugin-redis": "2.0.5",
-    "redis": "4.6.11",
+    "redis": "4.6.12",
     "ws": "8.15.0"
   },
   "devDependencies": {