Bump head.hackage and stop using it for ghc 9.12

Author: hamishmack

test/cabal.project.local

@@ -28,7 +28,7 @@ repository head.hackage.ghc.haskell.org
      f76d08be13e9a61a377a85e2fb63f4c5435d40f8feb3e12eb05905edb8cdea89
      26021a13b401500c8eb2761ca95c61f2d625bfef951b939a8124ed12ecf07329
      7541f32a4ccca4f97aea3b22f5e593ba2c0267546016b992dfadcd2fe944e55d
-  --sha256: sha256-EQKpiiwoIXiM7r+bGYvQzB4vWANqO6PJaSUlt1NUIeI=
+  --sha256: sha256-RQS0PUBA6nAD1T0OSVFhcF7ldh+6L+cW+k96Hgo3z5s=
 
 repository ghcjs-overlay
   url: https://raw.githubusercontent.com/input-output-hk/hackage-overlay-ghcjs/ffb32dce467b9a4d27be759fdd2740a6edd09d0b
@@ -41,14 +41,14 @@ if os(ghcjs)
   extra-packages: ghci
   constraints: ghci installed
 
-if !impl(ghc>=9.11) && !os(ghcjs)
+if !impl(ghc>=9.13) && !os(ghcjs)
   active-repositories: hackage.haskell.org
 
-if impl(ghc>=9.11) && !os(ghcjs)
+if impl(ghc>=9.13) && !os(ghcjs)
   active-repositories: hackage.haskell.org, head.hackage.ghc.haskell.org
 
-if !impl(ghc>=9.11) && os(ghcjs)
+if !impl(ghc>=9.13) && os(ghcjs)
   active-repositories: hackage.haskell.org, ghcjs-overlay:override
 
-if impl(ghc>=9.11) && os(ghcjs)
+if impl(ghc>=9.13) && os(ghcjs)
   active-repositories: hackage.haskell.org, head.hackage.ghc.haskell.org, ghcjs-overlay:override