CI: relax constraint on installed packages

Author: andreasabel

.github/workflows/haskell-ci.yml

@@ -191,7 +191,6 @@ 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: $_ installed\n" unless /^(Cabal|hackage-server|parsec|text)$/; }' >> cabal.project.local
           cat cabal.project
           cat cabal.project.local
       - name: dump install plan

cabal.haskell-ci

@@ -1,6 +1,7 @@
 branches: master ci*
 
-installed: +all -Cabal -text -parsec
+installed: -all
+-- installed: +all -Cabal -text -parsec
 
 -- -- irc-channels works with GHA, but why send to a channel
 -- -- when one can subscribe to github notifications?