REMOVEME: Enable multiple retries

Author: carbolymer

.github/workflows/haskell.yml

@@ -40,6 +40,7 @@ jobs:
         # see https://github.com/haskell/stm/issues/76
         ghc: ["9.6", "9.10"]
         cabal: ["3.12"]
+        n: [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20]
         sys:
           - { os: windows-latest, shell: 'C:/msys64/usr/bin/bash.exe -e {0}' }
           - { os: ubuntu-latest, shell: bash }
@@ -62,17 +63,6 @@ jobs:
       MSYS2_PATH_TYPE: inherit
       MSYSTEM: MINGW64
 
-    concurrency:
-      group: >
-        a+${{ github.event_name }}
-        b+${{ github.workflow_ref }}
-        c+${{ github.job }}
-        d+${{ matrix.ghc }}
-        e+${{ matrix.cabal }}
-        f+${{ matrix.sys.os }}
-        g+${{ (startsWith(github.ref, 'refs/heads/gh-readonly-queue/') && github.run_id) || github.event.pull_request.number || github.ref }}
-      cancel-in-progress: true
-
     steps:
     - name: Concurrency group
       run: >
@@ -180,7 +170,7 @@ jobs:
       if: ${{ failure() }}
       uses: actions/upload-artifact@v4
       with:
-        name: failed-test-workspaces-${{ matrix.sys.os }}-ghc${{ matrix.ghc }}-cabal${{ matrix.cabal }}.tgz
+        name: failed-test-workspaces-${{ matrix.sys.os }}-ghc${{ matrix.ghc }}-cabal${{ matrix.cabal }}-${{ matrix.n }}.tgz
         path: ${{ runner.temp }}/workspaces.tgz
 
     - name: "Tar artifacts"