build(deps-dev): update @wmfs/hl-pg-client requirement

Updates the requirements on [@wmfs/hl-pg-client](https://github.com/wmfs/hl-pg-client) to permit the latest version.
- [Release notes](https://github.com/wmfs/hl-pg-client/releases)
- [Changelog](https://github.com/wmfs/hl-pg-client/blob/master/CHANGELOG.md)
- [Commits](https://github.com/wmfs/hl-pg-client/commits/v1.6.0)

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

package.json

@@ -43,7 +43,7 @@
     "standard": "12.0.1",
     "@semantic-release/changelog": "3.0.0",
     "@semantic-release/git": "7.0.4",
-    "@wmfs/hl-pg-client": "1.5.0"
+    "@wmfs/hl-pg-client": "1.6.0"
   },
   "scripts": {
     "lint": "standard",