Upgrade stack

Author: mbj

ci/download-stack.sh

@@ -2,8 +2,8 @@
 
 set -e
 
-curl --location --output stack https://github.com/commercialhaskell/stack/releases/download/v2.11.1/stack-2.11.1-linux-x86_64-bin
+curl --location --output stack https://github.com/commercialhaskell/stack/releases/download/v2.15.1/stack-2.15.1-linux-x86_64-bin
 
-echo '5c7a9f86c126d4af15d03ddc03f95f3ceafedd3b9d3dcc7818f2ea60ed6a0ef9  stack' | sha256sum -c
+echo '8e094ed173bd58a1afc19abe178013c4d40317180204deb88f4ae98be12610d4  stack' | sha256sum -c
 
 chmod +x ./stack