add coveralls to tox config

Author: RichardZhu2

tox.ini

@@ -1,17 +1,34 @@
 [tox]
-envlist = py{3.11, 3.12, 3.13}
+envlist = py{3.11, 3.12, 3.13}, coverage
 
 [testenv]
 deps =
    pytest
    pytest-asyncio
    pytest-cov
+   coverage
 commands =
    coverage erase
    pytest --cov={envsitepackagesdir}/pyper tests
    coverage report -m
 setenv =
     COVERAGE_FILE = .tox/.coverage
 
+[testenv:coverage]
+deps =
+   pytest
+   pytest-asyncio
+   pytest-cov
+   coverage
+   coveralls
+commands =
+   coverage erase
+   pytest --cov={envsitepackagesdir}/pyper tests
+   coverage report -m
+   coverage xml
+   coveralls
+setenv =
+    COVERALLS_REPO_TOKEN = {env:COVERALLS_REPO_TOKEN}
+
 [coverage]
-rcfile = .coveragerc
+rcfile = .coveragerc