Remove references to cabal-ghc921.project

It has been changed to `cabal-ghc92.project`

Author: wz1000

.github/actions/setup-build/action.yml

@@ -42,7 +42,7 @@ runs:
         echo "CABAL_PKGS_DIR=~/.cabal/packages" >> $GITHUB_ENV
       shell: bash
 
-    # This copy an alternative cabal-ghc${GHCVER}.project (for example cabal-ghc921.project)
+    # This copy an alternative cabal-ghc${GHCVER}.project (for example cabal-ghc92.project)
     # as main cabal-project, for not fully supported ghc versions
     # Needs to be before the caching step so that the cache can detect changes to the modified cabal.project file
     - name: Use possible modified `cabal.project`

.gitlab-ci.yml

@@ -20,7 +20,7 @@ variables:
     - GHC_VERSION: 9.0.2
       CABAL_PROJECT: cabal-ghc90.project
     - GHC_VERSION: 9.2.2
-      CABAL_PROJECT: cabal-ghc921.project
+      CABAL_PROJECT: cabal-ghc92.project
 
 workflow:
   rules:

docs/installation.md

@@ -36,7 +36,7 @@ ghcup compile hls -v 1.6.1.0 --ghc 8.10.7 --ghc 8.8.4
 
 Use a different `cabal.project` for a GHC version:
 ```
-ghcup compile hls -v 1.6.1.0 --ghc 9.2.1 --cabal-project cabal-ghc921.project
+ghcup compile hls -v 1.6.1.0 --ghc 9.2.1 --cabal-project cabal-ghc92.project
 ```
 
 Check `ghcup compile hls --help` for a full list of compilation options.

flake.nix

@@ -337,7 +337,7 @@
           haskell-language-server-884-dev = mkDevShell ghc884 "cabal.project";
           haskell-language-server-8107-dev = mkDevShell ghc8107 "cabal.project";
           haskell-language-server-901-dev = mkDevShell ghc901 "cabal-ghc90.project";
-          haskell-language-server-921-dev = mkDevShell ghc921 "cabal-ghc921.project";
+          haskell-language-server-921-dev = mkDevShell ghc921 "cabal-ghc92.project";
         };
 
         # Developement shell, haskell packages are also provided by nix
@@ -346,7 +346,7 @@
           haskell-language-server-884-dev-nix = mkDevShellWithNixDeps ghc884 "cabal.project";
           haskell-language-server-8107-dev-nix = mkDevShellWithNixDeps ghc8107 "cabal.project";
           haskell-language-server-901-dev-nix = mkDevShellWithNixDeps ghc901 "cabal-ghc90.project";
-          haskell-language-server-921-dev-nix = mkDevShellWithNixDeps ghc921 "cabal-ghc921.project";
+          haskell-language-server-921-dev-nix = mkDevShellWithNixDeps ghc921 "cabal-ghc92.project";
         };
 
         allPackages = {