test against python 3.13 (not 3.14) for now

Author: Christopher Doris

.github/workflows/tests.yml

@@ -66,7 +66,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        pyversion: ["3", "3.10"]
+        pyversion: ["3.13", "3.10"]
         juliaexe: ["@JuliaPkg"]
         include:
         - os: ubuntu-latest

test/CondaPkg.toml

@@ -0,0 +1,2 @@
+[deps]
+python = "3.13.*"