Tweak coverage configuration for type checking (jaraco/skeleton#97)

* Tweak coverage configuration for type checking

* Use `exclude_also` instead of `exclude_lines`

Co-authored-by: Sviatoslav Sydorenko <[email protected]>

* Add reference to the issue.

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Co-authored-by: Sviatoslav Sydorenko <[email protected]>
Co-authored-by: Jason R. Coombs <[email protected]>

Author: 3 people

.coveragerc

@@ -7,3 +7,7 @@ disable_warnings =
 
 [report]
 show_missing = True
+exclude_also =
+	# jaraco/skeleton#97
+	@overload
+	if TYPE_CHECKING: