chore: updates librarian state.yaml with library id and metadata

Author: chalmerlowe

.librarian/state.yaml

@@ -1,5 +1,14 @@
 image: us-central1-docker.pkg.dev/cloud-sdk-librarian-prod/images-prod/python-librarian-generator@sha256:234b9d1f2ddb057ed7ac6a38db0bf8163d839c65c6cf88ade52530cddebce59e
 libraries:
+  - id: bigframes
+    version: 2.37.0
+    last_generated_commit: ""
+    apis: []
+    source_roots:
+      - packages/bigframes
+    preserve_regex: []
+    remove_regex: []
+    tag_format: '{id}-v{version}'
   - id: bigquery-magics
     version: 0.12.2
     last_generated_commit: ""