chore(deps): update dependency @platformatic/db to v3.20.0

Author: renovate[bot]

packages/massimo-cli/package.json

@@ -47,7 +47,7 @@
   },
   "devDependencies": {
     "@platformatic/composer": "3.20.0",
-    "@platformatic/db": "3.0.0-alpha.6",
+    "@platformatic/db": "3.20.0",
     "@platformatic/foundation": "3.17.0",
     "@platformatic/runtime": "3.16.0",
     "@platformatic/service": "3.0.0-alpha.6",

packages/massimo/package.json

@@ -44,7 +44,7 @@
   "homepage": "https://github.com/platformatic/massimo#readme",
   "devDependencies": {
     "@fastify/multipart": "^9.0.1",
-    "@platformatic/db": "3.0.0-alpha.6",
+    "@platformatic/db": "3.20.0",
     "@platformatic/foundation": "3.17.0",
     "@platformatic/service": "3.0.0-alpha.6",
     "@platformatic/telemetry": "3.0.0-alpha.6",