Update maintainer/email for stub package, bump rst2pyi dep

requirements-dev.txt

@@ -1 +1 @@
-rst2pyi=0.1.0
+rst2pyi>=0.3.0

setup.py

@@ -12,11 +12,11 @@ setup(
     name="circuitpython-stubs",
     description="PEP 561 type stubs for CircuitPython",
     url="https://github.com/adafruit/circuitpython",
-    author="John Reese",
-    author_email="john@noswap.com",
+    maintainer="CircuitPythonistas",
+    author_email="circuitpython@adafruit.com",
     version=version,
     license="MIT",
     package_data={"circuitpython-stubs": stubs},
     packages=["circuitpython-stubs"],
     setup_requires=["setuptools>=38.6.0"],
-)
+)