Update mypy requirement from <1.6,>=1.0 to >=1.0,<1.7

pyproject.toml

@@ -83,7 +83,7 @@ docs = [
 tests = [
     "coverage>=5.3,<7.4",  # Lets us track what code is being tested
     "doc8>=1.0,<1.2",  # Ensures clean documentation formatting
-    "mypy>=1.0,<1.6",  # Static type checking
+    "mypy>=1.0,<1.7",  # Static type checking
     "pre-commit>=2.9,<3.5",  # Allow us to run pre-commit hooks in testing
     "pydocstyle>=5.1,<6.4",  # Style guidelines for Python documentation
     "pytest>=6.2,<7.5",  # Our testing framework