Ignore architecture suffix for sqlite3 gem

This confused renovate, see !17

renovate.json

@@ -22,6 +22,7 @@
       ],
       "groupName": "ruby"
     },
-    {"matchPackageNames": ["tailwindcss-rails"], "allowedVersions": "<4.0"}
+    {"matchPackageNames": ["tailwindcss-rails"], "allowedVersions": "<4.0"},
+    {"matchPackageNames": ["sqlite3"], "versioning": "semver-coerced"}
   ]
 }