[CI]quotes

Author: MikailBag

.github/workflows/rust.yml

@@ -73,7 +73,7 @@ jobs:
           rustup target add ${{ matrix.target }}
           cargo build -Zunstable-options --out-dir=../out --target=${{ matrix.target }}
       - name: Run tests (Linux)
-        if: matrix.os == "ubuntu-20.04"
+        if: matrix.os == 'ubuntu-20.04'
         timeout-minutes: 3 
         run: |
           sudo ./out/minion-tests --trace