Use uvx to run Zizmor (#1379)

Author: hynek

.github/workflows/zizmor.yml

@@ -22,12 +22,11 @@ jobs:
         uses: actions/checkout@v4
         with:
           persist-credentials: false
-      - name: Setup Rust
-        uses: actions-rust-lang/setup-rust-toolchain@v1
-      - name: Get zizmor
-        run: cargo install zizmor
+      - uses: hynek/setup-cached-uv@v2
+
       - name: Run zizmor
-        run: zizmor --format sarif . > results.sarif
+        run: uvx zizmor --format sarif . > results.sarif
+
       - name: Upload SARIF file
         uses: github/codeql-action/upload-sarif@v3
         with: