chore(deps): bump pytest-doctestplus from 1.3.0 to 1.4.0 (#870)

Author: dependabot[bot]

pyproject.toml

@@ -67,7 +67,7 @@ test = [
     "pytest-cases ==3.8.6",
     "pytest-custom_exit_code ==0.3.0",
     "pytest-cov ==6.0.0",
-    "pytest-doctestplus ==1.3.0",
+    "pytest-doctestplus ==1.4.0",
     "pytest-env ==1.1.5",
 ]