chore(deps): update dependency @openfeature/core to ^0.0.19 (#663)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package-lock.json

@@ -44,7 +44,7 @@
     "@nx/rollup": "16.9.1",
     "@nx/web": "16.9.1",
     "@nx/workspace": "16.9.1",
-    "@openfeature/core": "^0.0.18",
+    "@openfeature/core": "^0.0.19",
     "@openfeature/flagd-core": ">=0.1.1",
     "@openfeature/server-sdk": "^1.6.2",
     "@openfeature/web-sdk": "^0.4.0",