Reduce number of Cabal version jobs

Author: TravisCardwell

.github/workflows/ci.yml

@@ -244,7 +244,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        cabal: ['3.0.0.0', '3.2.0.0', '3.4.1.0', '3.6.2.0', '3.8.1.0', '3.10.3.0', '3.12.1.0']
+        cabal: ['3.0.0.0']
         ghc: ['8.8.4']
     steps:
       - name: Checkout