fix: pin JSR CLI version in publish workflow

This change pins the JSR CLI version to 0.8.0 in the jsr-publish.yml workflow.
This is intended to prevent potential failures caused by unexpected updates or regressions in newer versions of the JSR CLI.

Author: google-labs-jules[bot]

.github/workflows/jsr-publish.yml

@@ -31,4 +31,4 @@ jobs:
         run: yarn install
 
       - name: Publish to JSR with version from tag
-        run: npx jsr publish --allow-dirty --tag ${{ steps.get_tag.outputs.tag }}
+        run: npx jsr@0.8.0 publish --allow-dirty --tag ${{ steps.get_tag.outputs.tag }}