Pin index-state used to build hoogle in tests

See #2277

Author: hamishmack

test/cabal-simple/default.nix

@@ -33,7 +33,7 @@ in recurseIntoAttrs {
   test-shell = (project.shellFor {
       tools = {
         cabal = { cabalProjectLocal = builtins.readFile ../cabal.project.local; };
-        hoogle = { cabalProjectLocal = builtins.readFile ../cabal.project.local; };
+        hoogle = { cabalProjectLocal = builtins.readFile ../cabal.project.local; index-state = "2024-10-01T00:00:00Z"; };
       };
       withHoogle = true;
     }).overrideAttrs (_: _: {

test/shell-for-setup-deps/default.nix

@@ -10,7 +10,7 @@ let
   };
 
   env = project.shellFor {
-    tools.hoogle = { cabalProjectLocal = builtins.readFile ../cabal.project.local; };
+    tools.hoogle = { cabalProjectLocal = builtins.readFile ../cabal.project.local; index-state = "2024-10-01T00:00:00Z"; };
     withHoogle = true;
   };