Update dev requirement for coveralls

from >= 1.8.2 to >= 2.1.0, for GitHub Actions support fix:
https://github.com/coveralls-clients/coveralls-python/releases/tag/2.1.0

diff --git a/setup.py b/setup.py
index 011b4fa1b3eaf0bb881bd728f45a66b193cba7ca..6c2d7b869f15b16f2608506d5f17e5f1c24dfcc5 100644 (file)
--- a/setup.py
+++ b/setup.py
@@ -46,7 +46,7 @@ setup(
     tests_require=tests_require,
     extras_require={
         "dev": [
-             "coveralls>=1.8.2",
+             "coveralls>=2.1.0",
              "tox>=2.4.0",
          ],
         "test": tests_require,