Update test matrix

Author: dranjan

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = global-init,py39-numpy{1.25,1.26,2.0},py310-numpy{1.25,1.26,2.0,2.1,2.2},py311-numpy{1.25,1.26,2.0,2.1,2.2},py312-numpy{1.26,2.0,2.1,2.2},py313-numpy{2.1,2.2},global-finalize
+envlist = global-init,py39-numpy{2.0},py310-numpy{2.0,2.1,2.2},py311-numpy{2.0,2.1,2.2,2.3},py312-numpy{2.0,2.1,2.2,2.3},py313-numpy{2.1,2.2,2.3},global-finalize
 
 [gh-actions]
 python =
@@ -21,11 +21,10 @@ usedevelop = True
 deps =
     pytest
     pytest-cov
-    numpy1.25: numpy>=1.25,<1.26
-    numpy1.26: numpy>=1.26,<1.27
     numpy2.0: numpy>=2.0,<2.1
     numpy2.1: numpy>=2.1,<2.2
     numpy2.2: numpy>=2.2,<2.3
+    numpy2.3: numpy>=2.3,<2.4
 setenv =
     COVERAGE_FILE = {toxworkdir}/.coverage.{envname}
 commands = py.test test -v --cov=plyfile