Sync thinc install dep in setup, fix test packaging (#9336)

* Sync thinc install dep in setup

* Add __init__.py to include package tests in package

* Include *.toml in package

MANIFEST.in

@@ -1,5 +1,5 @@
 recursive-include include *.h
-recursive-include spacy *.pyx *.pxd *.txt *.cfg *.jinja
+recursive-include spacy *.pyx *.pxd *.txt *.cfg *.jinja *.toml
 include LICENSE
 include README.md
 include pyproject.toml

setup.cfg

@@ -44,7 +44,7 @@ install_requires =
     murmurhash>=0.28.0,<1.1.0
     cymem>=2.0.2,<2.1.0
     preshed>=3.0.2,<3.1.0
-    thinc>=8.0.9,<8.1.0
+    thinc>=8.0.10,<8.1.0
     blis>=0.4.0,<0.8.0
     wasabi>=0.8.1,<1.1.0
     srsly>=2.4.1,<3.0.0