Adjust imports to updates in libpysal (#272)

* Bump codecov/codecov-action from 3 to 4

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 3 to 4.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v3...v4)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* fix broken imports

* codecov GHA v3

* Update esda/getisord.py

Co-authored-by: Martin Fleischmann <martin@martinfleischmann.net>

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Martin Fleischmann <martin@martinfleischmann.net>

esda/getisord.py

@@ -6,7 +6,9 @@
 
 import warnings
 
-from libpysal.common import np, stats
+import numpy as np
+from scipy import stats
+
 from libpysal.weights.spatial_lag import lag_spatial as slag
 from libpysal.weights.util import fill_diagonal
 

esda/smoothing.py

@@ -23,7 +23,10 @@
 import warnings
 from functools import reduce
 
+import numpy as np
+
 from libpysal.cg import (
+    KDTree,
     LineSegment,
     Point,
     Ray,
@@ -34,7 +37,6 @@
     get_points_dist,
     get_segment_point_dist,
 )
-from libpysal.common import KDTree, np
 from libpysal.common import requires as _requires
 from libpysal.weights.distance import Kernel
 from libpysal.weights.spatial_lag import lag_spatial as slag