Add hls-cabal-fmt-plugin to hackage release CI script and HLS library (#3335)

* Add hls-cabal-fmt-plugin to hackage release CI script

* Add cabalfmt common section to HLS

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
Co-authored-by: Michael Peyton Jones <[email protected]>

Author: 3 people

.github/workflows/hackage.yml

@@ -37,6 +37,7 @@ jobs:
                   "hls-splice-plugin", "hls-tactics-plugin",
                   "hls-call-hierarchy-plugin", "hls-alternate-number-format-plugin",
                   "hls-qualify-imported-names-plugin", "hls-code-range-plugin",
+                  "hls-cabal-fmt-plugin",
                   "haskell-language-server"]
         ghc: [ "9.0.2"
              , "8.10.7"

haskell-language-server.cabal

@@ -359,6 +359,7 @@ library
                   , pedantic
                   -- plugins
                   , callHierarchy
+                  , cabalfmt
                   , changeTypeSignature
                   , class
                   , haddockComments