bant: make compile again with latest bazel

It appears that the fixed derivation generated by bazel implicitly
contains other information, such as the path to the java runtime,
making this break.

pkgs/by-name/ba/bant/package.nix

@@ -34,8 +34,8 @@ in buildBazelPackage rec {
 
   fetchAttrs = {
     sha256 = {
-      aarch64-linux = "sha256-38O9HPKMjqpNCO+kC8hUlsJAclONVCj3oj/iVRwOEDo=";
-      x86_64-linux = "sha256-OUVjgVIBNh0j10dgk/l42bqmsGuBC56uf4Ei/IRXxBI=";
+      aarch64-linux = "sha256-UI+Vz/gU6ki0yulcDbA1lkKJg0MZWYMIpfIHHmIjVLo=";
+      x86_64-linux = "sha256-9ryJUrmLkhuH6wRuHkAXIvOC+xGJ+jHL6vlAkRuXcUI=";
     }.${system} or (throw "No hash for system: ${system}");
   };