Omit hacking directory from MANIFEST.in (#81245)

* Omit `hacking` directory from `MANIFEST.in`

* Update package-data sanity test

MANIFEST.in

@@ -2,8 +2,6 @@ include COPYING
 include bin/*
 include changelogs/CHANGELOG*.rst
 include changelogs/changelog.yaml
-include hacking/test-module.py
-include hacking/update-sanity-requirements.py
 include licenses/*.txt
 include requirements.txt
 recursive-include docs *

test/sanity/code-smell/package-data.py

@@ -28,10 +28,8 @@ def assemble_files_to_ship(complete_file_list):
         '.github/*',
         '.github/*/*',
         'changelogs/fragments/*',
-        'hacking/backport/*',
+        'hacking/*',
-        'hacking/azp/*',
+        'hacking/*/*',
-        'hacking/tests/*',
-        'hacking/ticket_stubs/*',
         'test/results/.tmp/*',
         'test/results/.tmp/*/*',
         'test/results/.tmp/*/*/*',
@@ -43,23 +41,8 @@ def assemble_files_to_ship(complete_file_list):
         # Developer-only tools
         'changelogs/README.md',
         'changelogs/config.yaml',
-        'hacking/README.md',
-        'hacking/ansible-profile',
-        'hacking/cgroup_perf_recap_graph.py',
-        'hacking/create_deprecated_issues.py',
-        'hacking/deprecated_issue_template.md',
-        'hacking/create-bulk-issues.py',
-        'hacking/metadata-tool.py',
-        'hacking/report.py',
-        'hacking/return_skeleton_generator.py',
-        'hacking/test-module',
         '.cherry_picker.toml',
         '.mailmap',
-        # Possibly should be included
-        'hacking/env-setup',
-        'hacking/env-setup.fish',
-        'MANIFEST',
-        'setup.cfg',
     ))
 
     # These files are generated and then intentionally added to the sdist