Update Pipfile as temporary measure to unblock work involving compiler (#1012)

* Update Pipfile as temporary measure to unblock work involving compiler

* type-hint docs

* lint

* Sync Pipfile with setup.py

* Pin mypy to <0.8

* Revert "type-hint docs"

This reverts commit b7854ae.

* update pipfile lock

* fix Pipfile comment

* Fix extra line in conf.py

* Fix cost estimation error type for flake8

Author: LWprogramming

Pipfile

@@ -21,7 +21,7 @@ flake8 = ">=3.6.0,<4"
 flake8-bugbear = ">=19.8.0"
 flake8-print = ">=3.1.0,<4"
 isort = ">=4.3.4,<5"
-mypy = ">=0.750,<1"
+mypy = ">=0.750,<0.800"  # Breaking change in mypy 0.800: https://github.com/obi1kenobi/typing-copilot/issues/10
 parameterized = ">=0.6.1,<1"
 pydocstyle = ">=5.0.1,<6"
 pylint = ">=2.4.4,<2.5"
@@ -43,7 +43,7 @@ ciso8601 = ">=2.1.3,<3"
 funcy = ">=1.7.3,<2"
 graphql-core = ">=3.1.2,<3.2"  # minor versions sometimes contain breaking changes
 six = ">=1.10.0"
-sqlalchemy = ">=1.3.0,<2"
+sqlalchemy = ">=1.3.0,<1.4"  # minor version update contains breaking changes
 
 # The below is necessary to make a few pylint passes work properly, since pylint expects to be able
 # to run "import graphql_compiler" in the environment in which it runs.