don't add constraint when running CI

.github/workflows/haskell-ci.yml

@@ -166,7 +166,6 @@ jobs:
           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 /^(cabal-hoogle)$/; }' >> cabal.project.local
           cat cabal.project
           cat cabal.project.local
       - name: dump install plan
@@ -199,10 +198,6 @@ jobs:
       - name: haddock
         run: |
           $CABAL v2-haddock --disable-documentation --haddock-all $ARG_COMPILER --with-haddock $HADDOCK $ARG_TESTS $ARG_BENCH all
-      - name: unconstrained build
-        run: |
-          rm -f cabal.project.local
-          $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks all
       - name: save cache
         uses: actions/cache/save@v4
         if: always()

README.md

@@ -48,3 +48,13 @@ cabal-hoogle run -- search catMaybes
 ### More Options
 
 Run `cabal-hoogle --help` to see more options.
+
+## Contributing
+
+The CI is managed by [`haskell-ci`](https://github.com/haskell-CI/haskell-ci).
+After adding support of any new GHC version, run the following command using the
+latest `haskell-ci` executable to regenerate a new GHA workflow file.
+
+```haskell
+haskell-ci regenerate --no-unconstrained --installed=-all
+```