chore: Update Mainnet IC revisions canisters file (#11138)

Update mainnet system canisters revisions file to include the latest
WASM version released on the mainnet.

This PR is created automatically using
[`mainnet_revisions.py`](https://github.com/dfinity/ic/blob/master/ci/src/mainnet_revisions/mainnet_revisions.py)

Co-authored-by: CI Automation <infra+github-automation@dfinity.org>

Author: pr-creation-bot-dfinity-ic[bot]

mainnet-canister-revisions.json

@@ -108,8 +108,8 @@
     "tag": "proposal-142801"
   },
   "node-rewards": {
-    "rev": "fc79106bd7662b690ccfce113ce66008fb17eb0a",
-    "sha256": "b5595995dd7791a697f483c297a15b72a37d224afc519f9c95ce0b72359c71be"
+    "rev": "5ec6c4cd04236a30930f57463a272b41ec093127",
+    "sha256": "b646b205a5f967350b71812ca36b3dd6d18dd4074f6ed9060d3874dd6e588bfa"
   },
   "registry": {
     "rev": "3ec5d044f5dc45a93943ec14258891a1c3c272be",