Ship testdata/ and tests/ in sdist. Fixes #1292

MANIFEST.in

@@ -12,7 +12,8 @@ include dulwich/py.typed
 recursive-include docs conf.py *.txt Makefile make.bat
 recursive-include examples *.py
 recursive-include crates *.rs Cargo.toml
-graft dulwich/tests/data
+graft tests/
+graft testdata/
 include tox.ini
 include dulwich.cfg
 include .testr.conf

NEWS

@@ -2,6 +2,8 @@
 
  * Ship ``Cargo.lock``. (Jelmer Vernooij, #1287)
 
+ * Ship ``tests/`` and ``testdata/`` in sdist. (Jelmer Vernooij, #1292)
+
 0.22.1	2024-04-23
 
  * Handle alternate case for worktreeconfig setting (Will Shanks, #1285)