niv ic-hs: update ca6aca90 -> 934ea79e (#3900)

## Changelog for ic-hs:
Branch: master
Commits: [dfinity/ic-hs@ca6aca90...934ea79e](dfinity/ic-hs@ca6aca9...934ea79)

* [`f207e269`](dfinity/ic-hs@f207e26) add test to start a stopping canister ([dfinity/ic-hs⁠#153](https://togithub.com/dfinity/ic-hs/issues/153))
* [`3d61cfcf`](dfinity/ic-hs@3d61cfc) implement CRP-1951 in ic-hs ([dfinity/ic-hs⁠#154](https://togithub.com/dfinity/ic-hs/issues/154))
* [`ec9adff7`](dfinity/ic-hs@ec9adff) allow multiple request_status paths for a single request ID in read_state ([dfinity/ic-hs⁠#156](https://togithub.com/dfinity/ic-hs/issues/156))
* [`934ea79e`](dfinity/ic-hs@934ea79) check the number of delegations in sender_delegation ([dfinity/ic-hs⁠#155](https://togithub.com/dfinity/ic-hs/issues/155))

nix/sources.json

@@ -40,10 +40,10 @@
         "homepage": "",
         "owner": "dfinity",
         "repo": "ic-hs",
-        "rev": "ca6aca90d057182949dff71b48dfe77ffcd28d9b",
-        "sha256": "12l62gvnqy4kmmd8sgpslxwr109i9s8xnjzxq4ch53fqk4r1lg5i",
+        "rev": "934ea79eb9d9b1c39e7f895ce82ac4fc28e8e3f4",
+        "sha256": "1igksazrkmij07df7qhv4q8m7dzskrc4wpfmsp5nkzbn7p1p5id5",
         "type": "tarball",
-        "url": "https://github.com/dfinity/ic-hs/archive/ca6aca90d057182949dff71b48dfe77ffcd28d9b.tar.gz",
+        "url": "https://github.com/dfinity/ic-hs/archive/934ea79eb9d9b1c39e7f895ce82ac4fc28e8e3f4.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "libtommath": {