message: fix(release): add typing-extensions as dependency
diff: @@ -105,6 +105,7 @@ setup(
  "sqlalchemy>=1.3.16, <2.0, !=1.3.21",
  "sqlalchemy-utils>=0.36.6,<0.37",
  "sqlparse==0.3.0", # PINNED! see https://github.com/andialbrecht/sqlparse/issues/562
  + "typing-extensions>=3.7.4.3,<4", # needed to support typing.Literal on py37
  "wtforms-json",
  "pyparsing>=2.4.7, <3.0.0",
  "holidays==0.10.3", # PINNED! https://github.com/dr-prodigy/python-holidays/issues/406
  