Fix CI: ignore dev files in the sdist check, use cabal.project

The sdist check failed on cabal.project and sources.nix, which are not
part of the source distribution. Without CABAL_PROJECT, packcheck removes
cabal.project for the sdist build, but streamly-coreutils is only
available through its source-repository-package. Also run hlint on cli
and test.

Author: harendra-kumar

.github/workflows/packcheck.yml

@@ -157,16 +157,16 @@ jobs:
             command: cabal
             ghc_version: 9.12.4
             # WARNING! cannot use # comments inside pack_options.
-            #pack_options: >-
-            #  CABAL_PROJECT=cabal.project
+            pack_options: >-
+              CABAL_PROJECT=cabal.project
 
           - name: ci
             runner: ubuntu-latest
             command: cabal
             ghc_version: 9.10.3
             # WARNING! cannot use # comments inside pack_options.
-            #pack_options: >-
-            #  CABAL_PROJECT=cabal.project
+            pack_options: >-
+              CABAL_PROJECT=cabal.project
 
           #- name: ghc-9.10.3
           #  runner: ubuntu-latest
@@ -182,24 +182,24 @@ jobs:
             command: cabal
             ghc_version: 9.8.4
             # WARNING! cannot use # comments inside pack_options.
-            #pack_options: >-
-            #  CABAL_PROJECT=cabal.project
+            pack_options: >-
+              CABAL_PROJECT=cabal.project
 
           - name: ci
             runner: ubuntu-latest
             command: cabal
             ghc_version: 9.6.3
             # WARNING! cannot use # comments inside pack_options.
-            #pack_options: >-
-            #  CABAL_PROJECT=cabal.project
+            pack_options: >-
+              CABAL_PROJECT=cabal.project
 
           - name: ci
             runner: windows-latest
             command: cabal
             ghc_version: 9.12.4
             # WARNING! cannot use # comments inside pack_options.
-            #pack_options: >-
-            #  CABAL_PROJECT=cabal.project
+            pack_options: >-
+              CABAL_PROJECT=cabal.project
 
           - name: ci
             runner: ubuntu-latest
@@ -208,7 +208,7 @@ jobs:
             pack_options: >-
               HLINT_VERSION=3.6.1
               HLINT_OPTIONS="lint"
-              HLINT_TARGETS="src"
+              HLINT_TARGETS="src cli test"
 
           #- name: docspec
           #  runner: ubuntu-latest

.packcheck.ignore

@@ -4,3 +4,5 @@
 cabal.project.Werror
 flake.lock
 flake.nix
+cabal.project
+sources.nix