Fix CI: move testiq to dev extras

Author: kirankotari

pyproject.toml

@@ -47,6 +47,7 @@ dev = [
     "pytest-cov>=4.1.0",
     "ruff>=0.8.0",
     "black>=24.0.0",
+    "testiq>=0.2.0",
 ]
 
 [build-system]
@@ -129,8 +130,3 @@ exclude_lines = [
     "raise NotImplementedError",
     "if __name__ == .__main__.:",
 ]
-
-[dependency-groups]
-dev = [
-    "testiq>=0.2.0",
-]