build(deps): update deepmerge requirement from 2.1.1 to 2.2.0

Updates the requirements on [deepmerge](https://github.com/KyleAMathews/deepmerge) to permit the latest version.
- [Release notes](https://github.com/KyleAMathews/deepmerge/releases)
- [Changelog](https://github.com/KyleAMathews/deepmerge/blob/master/changelog.md)
- [Commits](https://github.com/KyleAMathews/deepmerge/commits/v2.2.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

package.json

@@ -20,7 +20,7 @@
     "url": "https://github.com/wmfs/addressbase-premium-blueprint/issues"
   },
   "dependencies": {
-    "deepmerge": "2.1.1",
+    "deepmerge": "2.2.0",
     "@wmfs/gazetteer-blueprint": "1.5.0",
     "@wmfs/tymly-etl-plugin": "1.64.0",
     "@wmfs/tymly-pg-plugin": "1.70.0"