Update bitcoin-spv dependency for migration script
We update bitcoin-spv dependency version to branch v1.1.0-high-err to
align it with dependency required by contracts in `package.json` file.
@@ -55,7 +55,7 @@ ssh utilitybox << EOF
cd /tmp/$BUILD_TAG/implementation
-npm install git+https://github.com/summa-tx/bitcoin-spv.git#v1.1.0
+npm install git+https://github.com/summa-tx/bitcoin-spv.git#v1.1.0-high-err
npm install bn-chai@1.0.1
npm install bn.js@4.11.8
npm install chai@4.2.0
