update CI

Author: byorgey

.github/workflows/haskell-ci.yml

@@ -58,21 +58,6 @@ jobs:
             compilerVersion: 9.2.8
             setup-method: ghcup
             allow-failure: false
-          - compiler: ghc-9.0.2
-            compilerKind: ghc
-            compilerVersion: 9.0.2
-            setup-method: ghcup
-            allow-failure: false
-          - compiler: ghc-8.10.7
-            compilerKind: ghc
-            compilerVersion: 8.10.7
-            setup-method: ghcup
-            allow-failure: false
-          - compiler: ghc-8.8.4
-            compilerKind: ghc
-            compilerVersion: 8.8.4
-            setup-method: ghcup
-            allow-failure: false
       fail-fast: false
     steps:
       - name: apt-get install