Bump core in mix.lock

Author: vihu

mix.lock

@@ -3,7 +3,7 @@
   "artificery": {:hex, :artificery, "0.4.2", "3ded6e29e13113af52811c72f414d1e88f711410cac1b619ab3a2666bbd7efd4", [:mix], [], "hexpm", "514586f4312ef3709a3ccbd8e55f69455add235c1729656687bb781d10d0afdb"},
   "backoff": {:hex, :backoff, "1.1.6", "83b72ed2108ba1ee8f7d1c22e0b4a00cfe3593a67dbc792799e8cce9f42f796b", [:rebar3], [], "hexpm", "cf0cfff8995fb20562f822e5cc47d8ccf664c5ecdc26a684cbe85c225f9d7c39"},
   "base32": {:hex, :base32, "0.1.0", "044f6dc95709727ca2176f3e97a41ddaa76b5bc690d3536908618c0cb32616a2", [:rebar3], [], "hexpm", "10a73951d857d8cb1eceea8eb96c6941f6a76e105947ad09c2b73977dee07638"},
-  "blockchain": {:git, "[email protected]:helium/blockchain-core.git", "bc11ef0a032b7bea0abb5018e4b8b6dbd4ac196e", [branch: "macpie/ch5377/data-credits-state-channels"]},
+  "blockchain": {:git, "[email protected]:helium/blockchain-core.git", "48a7076e50b10206ce3855cd35e0a4ba5165aaec", [branch: "macpie/ch5377/data-credits-state-channels"]},
   "certifi": {:hex, :certifi, "2.5.1", "867ce347f7c7d78563450a18a6a28a8090331e77fa02380b4a21962a65d36ee5", [:rebar3], [{:parse_trans, "~>3.3", [hex: :parse_trans, repo: "hexpm", optional: false]}], "hexpm", "805abd97539caf89ec6d4732c91e62ba9da0cda51ac462380bbd28ee697a8c42"},
   "clique": {:git, "https://github.com/helium/clique.git", "e4be0dae150061bec080502ed530091672880867", [branch: "develop"]},
   "combine": {:hex, :combine, "0.10.0", "eff8224eeb56498a2af13011d142c5e7997a80c8f5b97c499f84c841032e429f", [:mix], [], "hexpm", "1b1dbc1790073076580d0d1d64e42eae2366583e7aecd455d1215b0d16f2451b"},