fix(测试跟踪): 测试用例关联文件进度条样式问题

--bug=1020160 --user=宋昌昌 【测试跟踪】测试用例-关联文件-文件名显示优化 https://www.tapd.cn/55049933/s/1303142

test-track/frontend/src/business/case/components/TestCaseAttachment.vue

@@ -175,10 +175,6 @@ export default {
 </script>
 
 <style scoped>
-.el-progress-bar__innerText {
-  color: black;
-}
-
 :deep(.el-progress.row-delete-name .el-progress-bar__innerText) {
   color: lightgrey!important;
 }
@@ -186,7 +182,7 @@ export default {
 :deep(.el-progress-bar__outer),
 :deep(.el-progress-bar__inner) {
   border-radius: inherit ;
-  background-color: transparent;
+  background-color: transparent!important;
 }
 
 :deep(.el-progress-bar__innerText) {