test: skip test of electronic_configuration_embedding if mendeleev is…

… not installed (#3755)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **Chores**
- Updated the pre-commit hooks to a newer version for improved
performance and bug fixes.
  
- **Tests**
- Enhanced test reliability by skipping certain tests if the required
`mendeleev` module is not available.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Co-authored-by: Han Wang <wang_han@iapcm.ac.cn>

.pre-commit-config.yaml

@@ -29,7 +29,7 @@ repos:
         exclude: ^source/3rdparty
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
-    rev: v0.4.2
+    rev: v0.4.3
     hooks:
       - id: ruff
         args: ["--fix"]

source/tests/common/test_econf_embd.py

@@ -6,7 +6,15 @@
     make_econf_embedding,
 )
 
+try:
+    import mendeleev  # noqa: F401
 
+    has_mendeleev = True
+except ImportError:
+    has_mendeleev = False
+
+
+@unittest.skipIf(not has_mendeleev, "does not have mendeleev installed, skip the UTs.")
 class TestEConfEmbd(unittest.TestCase):
     def test_fe(self):
         res = make_econf_embedding(["Fe"], flatten=False)["Fe"]