chore: Test in CI before publishing

Author: pklaschka

.github/workflows/publish-jsr.yml

@@ -14,6 +14,13 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-
       - name: Publish package
         run: npx jsr publish
+      - name: Setup Deno Environment
+        uses: denoland/setup-deno@v2
+        with:
+          deno-version: v2.x
+      - name: Execute Tests
+        run: deno task test
+      - name: Publish to JSR
+        run: deno publish