niv ic-hs: update 3cc51be5 -> 8384593e

## Changelog for ic-hs:
Branch: master
Commits: [dfinity/ic-hs@3cc51be5...8384593e](dfinity/ic-hs@3cc51be...8384593)

* [`9a7bcb2f`](dfinity/ic-hs@9a7bcb2) remember last trap also if on_cleanup succeeds ([dfinity/ic-hs⁠#124](https://github.com/dfinity/ic-hs/issues/124))
* [`8384593e`](dfinity/ic-hs@8384593) scale cycle cost of http_request calls based on subnet size ([dfinity/ic-hs⁠#123](https://github.com/dfinity/ic-hs/issues/123))

nix/sources.json

@@ -40,10 +40,10 @@
         "homepage": "",
         "owner": "dfinity",
         "repo": "ic-hs",
-        "rev": "3cc51be58784ba9b6e9a06afb4b59a11fb31c771",
-        "sha256": "0smz896izjzmr86ikmrgdh8ys1s3bghjvva33chs1wdy843834nj",
+        "rev": "8384593e2046158effd760bc1045038bcc86eda9",
+        "sha256": "00xsfm1cxk9gkib8g81h8kmdw3lrsjcza1fydhp0spc31vjbh4pn",
         "type": "tarball",
-        "url": "https://github.com/dfinity/ic-hs/archive/3cc51be58784ba9b6e9a06afb4b59a11fb31c771.tar.gz",
+        "url": "https://github.com/dfinity/ic-hs/archive/8384593e2046158effd760bc1045038bcc86eda9.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "libtommath": {