Prepare release for lsp-test, lsp and lsp-types

Fix `cabal check` output for all packages.
Relax dependency constraints.
Update ChangeLogs for all packages.

Author: fendor

lsp-test/lsp-test.cabal

@@ -22,9 +22,10 @@ bug-reports:        https://github.com/haskell/lsp/issues
 copyright:          2021 Luke Lau
 category:           Testing
 build-type:         Simple
-extra-source-files:
+extra-doc-files:
   ChangeLog.md
   README.md
+extra-source-files:
   test/data/**/*.hs
 
 source-repository head

lsp-types/lsp-types.cabal

@@ -16,10 +16,11 @@ maintainer:         alan.zimm@gmail.com
 copyright:          Alan Zimmerman, 2016-2021
 category:           Development
 build-type:         Simple
-extra-source-files:
+extra-doc-files:
   ChangeLog.md
-  metaModel.json
   README.md
+extra-source-files:
+  metaModel.json
 
 source-repository head
   type:     git

lsp/lsp.cabal

@@ -18,7 +18,7 @@ maintainer:         alan.zimm@gmail.com
 copyright:          Alan Zimmerman, 2016-2021
 category:           Development
 build-type:         Simple
-extra-source-files:
+extra-doc-files:
   ChangeLog.md
   README.md