Add Python 3.13 support

Author: jrbourbeau

.github/workflows/tests.yml

@@ -13,7 +13,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ["windows-latest", "ubuntu-latest", "macos-latest"]
-        python-version: ["3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
         exclude:
           # Python 3.11 build on macOS times out for some reason
           # xref https://github.com/coiled/dask-snowflake/pull/56

ci/environment-3.13.yaml

@@ -0,0 +1,14 @@
+name: test-environment
+channels:
+  - conda-forge
+dependencies:
+  # Required
+  - python=3.13
+  - dask
+  - distributed
+  - pandas
+  - pyarrow
+  - snowflake-connector-python >=2.6.0
+  - snowflake-sqlalchemy
+  # Testing
+  - pytest