Update .coveragerc file.

Author: KelSolaar

.coveragerc

@@ -3,7 +3,8 @@ source = colour_datasets
 sigterm = True
 [report]
 exclude_lines =
-    pragma: no cover
-    if __name__ == .__main__.:
     if TYPE_CHECKING:
+    if __name__ == .__main__.:
+    if typing.TYPE_CHECKING:
     pass
+    pragma: no cover