requirements: use latest Cython, tox 3.25.1

also remove the exclusion of the meanwhile outdated
broken Cython 0.27.

use tox 3.25.1 (as in 1.2-maint)

requirements.d/development.lock.txt

@@ -3,10 +3,10 @@ setuptools-scm==6.4.2
 pip==22.1.2
 virtualenv==20.14.1
 pkgconfig==1.5.5
-tox==3.25.0
+tox==3.25.1
 pytest==7.0.1
 pytest-xdist==2.5.0
 pytest-cov==3.0.0
 pytest-benchmark==3.4.1
-Cython==0.29.30
+Cython==0.29.32
 twine==3.8.0

requirements.d/development.txt

@@ -8,5 +8,5 @@ pytest
 pytest-xdist
 pytest-cov
 pytest-benchmark
-Cython!=0.27
+Cython
 twine