chore: publish inline type annotations (#224)

Allow inline type hints to be packaged and distributed
following PEP561 specification
https://peps.python.org/pep-0561/#specification

Co-authored-by: James Dow <JAMES.DOW@GAPAC.COM>

Author: jamesdow21

redshift_connector/py.typed

@@ -128,7 +128,9 @@ def get_tag(self):
     ],
     keywords="redshift dbapi",
     include_package_data=True,
-    package_data={"redshift-connector": ["*.py", "*.crt", "LICENSE", "NOTICE"]},
+    package_data={
+        "redshift-connector": ["*.py", "*.crt", "LICENSE", "NOTICE", "py.typed"]
+    },
     packages=find_packages(exclude=["test*"]),
     cmdclass=custom_cmds,
 )