fix name style

.github/workflows/docker.yml

@@ -12,19 +12,19 @@ on:
 
 jobs:
   standalone:
-    name: Standalone
+    name: standalone
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - name: Build Docker Image
+      - name: build docker image
         run: |
           cd tools/docker/standalone
           docker build --build-arg VERSION=4.2.1.0-100000102023092807 -t oceanbase-ce .
-      - name: Boot Docker Container
+      - name: start docker container
         timeout-minutes: 5
         run: |
           docker run --name ob-slim -p 2881:2881 -e MODE=slim -d oceanbase-ce
           eval 'while ! docker logs ob-slim | grep -q "boot success!"; do echo "booting..."; sleep 10; done'
           echo "boot success!"
-      - name: Test Docker Container
+      - name: test docker container
         run: docker exec ob-slim obclient -h127.0.0.1 -P2881 -uroot -e 'select version()'