Fix test failures after moving config to pyproject.toml

- Remove --cov-config setup.cfg reference in tox.ini since setup.cfg was deleted
- Fix coverage report configuration by replacing 'include' with 'omit' to exclude tests
- Coverage now reads configuration from pyproject.toml automatically

Author: theskumar

pyproject.toml

@@ -78,7 +78,7 @@ source = [
 
 [tool.coverage.report]
 show_missing = true
-include = ["*/site-packages/dotenv/*"]
+omit = ["*/tests/*"]
 exclude_lines = [
     "if IS_TYPE_CHECKING:",
     "pragma: no cover",

tox.ini

@@ -18,7 +18,7 @@ deps =
     sh >= 2.0.2, <3
     click
     py{39,310,311,312,313,3.14,pypy3}: ipython
-commands = pytest --cov --cov-report=term-missing --cov-config setup.cfg {posargs}
+commands = pytest --cov --cov-report=term-missing {posargs}
 depends =
     py{39,310,311,312,313,314},pypy3: coverage-clean
     coverage-report: py{39,310,311,312,313,314},pypy3