Use dependent-sum from hackage (haskell#2412)

* Use dependent-sum from hackage

* Update index in all project files

Author: jneira

.github/workflows/hackage.yml

@@ -28,7 +28,7 @@ jobs:
                   "hls-call-hierarchy-plugin",
                   "haskell-language-server"]
         # Uncomment 9.0.1 when ghcide is buildable
-        ghc: [ # "9.0.1",
+        ghc: [ "9.0.1",
               "8.10.7",
               "8.8.4",
               "8.6.5"]

cabal-ghc901.project

@@ -34,23 +34,9 @@ package *
   ghc-options: -haddock
   test-show-details: direct
 
-source-repository-package
-  type: git
-  location: https://github.com/mokus0/th-extras
-  tag: 0d050b24ec5ef37c825b6f28ebd46787191e2a2d
--- https://github.com/mokus0/th-extras/issues/10
-
-
-source-repository-package
-  type: git
-  location: https://github.com/fendor/dependent-sum
-  tag: 5de03c38b0de4945f4e9bce1b026110e69dc8118
-  subdir: dependent-sum-template
--- https://github.com/obsidiansystems/dependent-sum/pull/59
-
 write-ghc-environment-files: never
 
-index-state: 2021-11-23T21:12:30Z
+index-state: 2021-11-29T08:11:07Z
 
 constraints:
   -- These plugins don't work on GHC9 yet

cabal-ghc921.project

@@ -35,7 +35,7 @@ package *
 
 write-ghc-environment-files: never
 
-index-state: 2021-11-23T21:12:30Z
+index-state: 2021-11-29T08:11:07Z
 
 constraints:
   -- These plugins doesn't work on GHC92 yet

cabal.project

@@ -39,7 +39,7 @@ package *
 
 write-ghc-environment-files: never
 
-index-state: 2021-11-23T21:12:30Z
+index-state: 2021-11-29T08:11:07Z
 
 constraints:
     hyphenation +embed