fix: CI version check

.github/workflows/CI.yml

@@ -45,10 +45,10 @@ jobs:
         run: |
           version=$(yq e .version pubspec.yaml | cut -d "+" -f 1)
           last_tag=$(git tag --sort=committerdate | tail -1)
-          if $(echo $last_tag | grep -v "+"); then
+          if (echo $last_tag | grep -v "+"); then
             echo "Tag格式不正确"
             exit 1
-          elif $(echo $last_tag | grep $version); then
+          elif (echo $last_tag | grep -v $version); then
             echo "当前版本tag不存在，请手动添加tag."
             exit 1
           fi