Added Python 3.10, 3.11 to pyproject Python list

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "dcicutils"
-version = "7.12.0.2b6"  # TODO: To become 8.0.0
+version = "7.12.0.2b7"  # TODO: To become 8.0.0
 description = "Utility package for interacting with the 4DN Data Portal and other 4DN resources"
 authors = ["4DN-DCIC Team <support@4dnucleome.org>"]
 license = "MIT"
@@ -31,6 +31,8 @@ classifiers = [
     'Programming Language :: Python :: 3',
     'Programming Language :: Python :: 3.8',
     'Programming Language :: Python :: 3.9',
+    'Programming Language :: Python :: 3.10',
+    'Programming Language :: Python :: 3.11'
 ]