chore(deps): update fabric-chaincode-node monorepo to v2.5.6

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

Author: renovate[bot]

npm-shrinkwrap.json

@@ -26,8 +26,8 @@
   },
   "dependencies": {
     "class-transformer": "0.5.1",
-    "fabric-contract-api": "2.5.5",
-    "fabric-shim": "2.5.5",
+    "fabric-contract-api": "2.5.6",
+    "fabric-shim": "2.5.6",
     "json-stringify-deterministic": "1.0.12",
     "sort-keys-recursive": "2.1.10"
   }