ci: Add Python 3.10, 3.11 to test matrix

feat: Add basic import compatibility test

Adds Python 3.10 and 3.11 to the GitHub Actions test matrix to ensure
compatibility across the supported Python range (>=3.10, <3.13).

Also adds a simple test_compatibility.py to catch basic import errors
early, preventing regressions like the one reported in #2575 where
 caused issues on Python 3.10.

Co-Authored-By: Joe Moura <joao@crewai.com>

tests/test_compatibility.py

@@ -0,0 +1,14 @@
+import pytest
+
+def test_basic_import():
+    """
+    Tests that the crewai package can be imported without raising exceptions.
+    This helps catch basic installation and dependency issues, including import
+    errors related to Python version compatibility.
+    """
+    try:
+        import crewai
+    except ImportError as e:
+        pytest.fail(f"Failed to import crewai package: {e}")
+    except Exception as e:
+        pytest.fail(f"An unexpected error occurred during crewai import: {e}")