CI: Drop GHC 8.0 because of haskell/cabal#10379

.github/workflows/haskell-ci.yml

@@ -87,11 +87,6 @@ jobs:
             compilerVersion: 8.2.2
             setup-method: ghcup
             allow-failure: false
-          - compiler: ghc-8.0.2
-            compilerKind: ghc
-            compilerVersion: 8.0.2
-            setup-method: ghcup
-            allow-failure: false
       fail-fast: false
     steps:
       - name: apt
@@ -201,8 +196,8 @@ jobs:
           touch cabal.project
           touch cabal.project.local
           echo "packages: ${PKGDIR_HTTP}" >> cabal.project
-          if [ $((HCNUMVER >= 80200)) -ne 0 ] ; then echo "package HTTP" >> cabal.project ; fi
-          if [ $((HCNUMVER >= 80200)) -ne 0 ] ; then echo "    ghc-options: -Werror=missing-methods" >> cabal.project ; fi
+          echo "package HTTP" >> cabal.project
+          echo "    ghc-options: -Werror=missing-methods" >> cabal.project
           cat >> cabal.project <<EOF
           EOF
           $HCPKG list --simple-output --names-only | perl -ne 'for (split /\s+/) { print "constraints: any.$_ installed\n" unless /^(HTTP)$/; }' >> cabal.project.local

HTTP.cabal

@@ -69,7 +69,8 @@ tested-with:
   GHC == 8.6.5
   GHC == 8.4.4
   GHC == 8.2.2
-  GHC == 8.0.2
+  -- CI failing for GHC 8.0 because of https://github.com/haskell/cabal/issues/10379
+  -- GHC == 8.0.2
 
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