GA(deps): Bump haskell-actions/setup from 2.9 to 2.11

Bumps [haskell-actions/setup](https://github.com/haskell-actions/setup) from 2.9 to 2.11.
- [Release notes](https://github.com/haskell-actions/setup/releases)
- [Commits](haskell-actions/setup@v2.9...v2.11)

---
updated-dependencies:
- dependency-name: haskell-actions/setup
  dependency-version: '2.11'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -57,7 +57,7 @@ jobs:
     steps:
     - uses: actions/checkout@v6
 
-    - uses: haskell-actions/setup@v2.9
+    - uses: haskell-actions/setup@v2.11
       id: setup-haskell-cabal
       name: Setup Haskell
       with:
@@ -105,7 +105,7 @@ jobs:
     steps:
     - uses: actions/checkout@v6
 
-    - uses: haskell-actions/setup@v2.9
+    - uses: haskell-actions/setup@v2.11
       name: Setup Haskell Stack
       with:
         ghc-version: ${{ matrix.ghc }}