Use Paths_cabal_install for cabal-install version number (haskell#9421)

* Use PackageInfo for cabal-install version number

* Use Paths_cabal_install instead

* Adjust documentation

---------

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

cabal-install/cabal-install.cabal

@@ -63,6 +63,8 @@ library
     default-extensions: TypeOperators
 
     hs-source-dirs:   src
+    other-modules:
+        Paths_cabal_install
     exposed-modules:
         -- this modules are moved from Cabal
         -- they are needed for as long until cabal-install moves to parsec parser

cabal-install/src/Distribution/Client/Version.hs

@@ -5,11 +5,9 @@ module Distribution.Client.Version
 
 import Distribution.Version
 
--- This value determines the `cabal-install --version` output.
---
--- It is used in several places throughout the project, including anonymous build reports, client configuration,
--- and project planning output. Historically, this was a @Paths_*@ module, however, this conflicted with
--- program coverage information generated by HPC, and hence was moved to be a standalone value.
---
+import qualified Paths_cabal_install as PackageInfo
+
+-- |
+-- This value determines the output of `cabal-install --version`.
 cabalInstallVersion :: Version
-cabalInstallVersion = mkVersion [3, 11]
+cabalInstallVersion = mkVersion' PackageInfo.version