chore: run tests before publish

Author: jo

.github/workflows/publish.yml

@@ -5,7 +5,19 @@ on:
     types: [created]
 
 jobs:
-  publish-crate:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+      - uses: actions-rs/cargo@v1
+        with:
+          command: test
+
+  publish:
+    needs: test
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2