chore: update h11 dependecy to latest release (#2621)

Co-authored-by: Alejandro Perez Gancedo <[email protected]>

Author: LifeLex

requirements.txt

@@ -1,8 +1,7 @@
 -e .[standard]
 
-# TODO: Remove this after h11 makes a release. By this writing, h11 was on 0.14.0.
 # Core dependencies
-h11 @ git+https://github.com/python-hyper/h11.git@master
+h11==0.16.0
 
 # Explicit optionals
 a2wsgi==1.10.8