fix groovy syntax

Jenkinsfile

@@ -213,9 +213,8 @@ def cmake_build(Map conf=[:]){
     if (setup_args.contains("gfx94")){
         invocation_tag="gfx94"
     }
-    local_pre_setup_cmd = pre_setup_cmd
     if(check_host() && params.USE_SCCACHE && "${env.CK_SCCACHE}" != "null" && "${invocation_tag}" != "") {
-        redis_pre_setup_cmd = pre_setup_cmd + """
+        def redis_pre_setup_cmd = pre_setup_cmd + """
             #!/bin/bash
             export ROCM_PATH=/opt/rocm
             export SCCACHE_ENABLED=true
@@ -231,7 +230,7 @@ def cmake_build(Map conf=[:]){
             stunnel ../script/redis-cli.conf
             ../script/sccache_wrapper.sh --enforce_redis
         """
-        local_pre_setup_cmd = pre_setup_cmd + """
+        def local_pre_setup_cmd = pre_setup_cmd + """
             #!/bin/bash
             export ROCM_PATH=/opt/rocm
             export SCCACHE_ENABLED=true
@@ -262,12 +261,17 @@ def cmake_build(Map conf=[:]){
         """)
 
     echo cmd
-    try {
-        sh "${redis_pre_setup_cmd}"
+    if(check_host() && params.USE_SCCACHE && "${env.CK_SCCACHE}" != "null" && "${invocation_tag}" != "") {
+        try {
+            sh """${redis_pre_setup_cmd}"""
+        }
+        catch(err){
+            echo "could not connect to redis server. using local sccache."
+            sh """${local_pre_setup_cmd}"""
+        }
     }
-    catch(err){
-        echo "could not connect to redis server. using local sccache."
-        sh "${local_pre_setup_cmd}"
+    else{
+        sh """${pre_setup_cmd}"""
     }
     sh cmd