Update jax-version to include 0.8.3 (#209)

Author: lukebaumann

.github/workflows/test.yml

@@ -24,7 +24,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ['3.11', '3.12', '3.13', '3.14']
-        jax-version: ['0.8.0', '0.8.1', '0.8.2', '0.9.0', '0.9.1', '0.9.2', 'nightly']
+        jax-version: ['0.8.0', '0.8.1', '0.8.2', '0.8.3', '0.9.0', '0.9.1', '0.9.2', 'nightly']
 
     runs-on: ubuntu-latest
     timeout-minutes: 30