Allow py313 to be a third Python build (#156)

* Revert "Fix name of conda-forge py313 (#155)"

This reverts commit 10794ea.

* Revert "Replace py312 with py313 for build with latest Python variant (#154)"

This reverts commit 8894bd4.

scripts/tiledb-py/update-recipe.py

@@ -95,18 +95,15 @@
 #
 # https://github.com/conda-forge/conda-forge-pinning-feedstock/blob/main/recipe/conda_build_config.yaml
 
-config["python"] = ["3.9.* *_cpython", "3.13.* *_cp313"]
+config["python"] = ["3.9.* *_cpython", "3.12.* *_cpython"]
 config["python_impl"] = ["cpython", "cpython"]
 config["numpy"] = ["2.0", "2.0"]
 
 with open(conda_build_config, "w") as f:
     yaml.dump(config, f)
 
-# Have to remove python313/numpy2 migration files to rerender with subset of
-# Python variants
-python313_migration = "tiledb-py-feedstock/.ci_support/migrations/python313.yaml"
-if os.path.isfile(python313_migration):
-    os.remove(python313_migration)
+# Have to remove numpy2 migration file to rerender with subset of Python
+# variants
 numpy2_migration = "tiledb-py-feedstock/.ci_support/migrations/numpy2.yaml"
 if os.path.isfile(numpy2_migration):
     os.remove(numpy2_migration)