Change name of jobs/steps in os-check.yml to reflect what it does

Signed-off-by: Jiahao XU <Jiahao_XU@outlook.com>

Author: NobodyXu

.github/workflows/os-check.yml

@@ -14,7 +14,7 @@ on:
       - 'run_ci_tests.sh'
       - 'start_sshd.sh'
       - 'stop_sshd.sh'
-name: cargo check
+name: os check
 jobs:
   os-check:
     runs-on: ${{ matrix.os }}
@@ -29,7 +29,7 @@ jobs:
           profile: minimal
           toolchain: stable
       - uses: actions/checkout@v2
-      - name: cargo check
+      - name: cargo test
         uses: actions-rs/cargo@v1
         with:
           command: test