fix(deps): update dependency @graphql-mesh/transform-extend to v0.103.21

Author: renovate[bot]

packages/backend/package.json

@@ -38,7 +38,7 @@
     "@graphql-mesh/mysql": "0.15.3",
     "@graphql-mesh/transform-cache": "0.11.37",
     "@graphql-mesh/transform-encapsulate": "0.3.37",
-    "@graphql-mesh/transform-extend": "0.10.2",
+    "@graphql-mesh/transform-extend": "0.103.21",
     "@graphql-mesh/transform-federation": "0.8.37",
     "@graphql-mesh/transform-filter-schema": "0.14.37",
     "@graphql-mesh/transform-mock": "0.14.22",