ci: add uv.lock to release-please config (#120)

Author: obackhouse

.github/release-please-config.json

@@ -31,6 +31,12 @@
           "path": "/zixy-py/Cargo.toml",
           "jsonpath": "$.dependencies.zixy.version"
         },
+        {
+          "type": "toml",
+          "path": "/zixy-py/docs/uv.lock",
+          "jsonpath": "$.package[?(@.name.value == 'zixy')].version",
+          "glob": true
+        },
         {
           "type": "toml",
           "path": "/zixy-py/pyproject.toml",