update anndata requirement (resolving pandas version dependency)

Author: Yenaled

requirements.txt

@@ -1,12 +1,12 @@
-anndata>=0.6.22.post1
+anndata>=0.9.2
 h5py>=2.10.0
 Jinja2>2.10.1
 loompy>=3.0.6
 nbconvert>=5.6.0
 nbformat>=4.4.0
 ngs-tools>=1.8.6
 numpy>=1.17.2
-pandas>=1.0.0,<2
+pandas>=1.5.3
 plotly>=4.5.0
 requests>=2.22.0
 scanpy>=1.4.4.post1