Update add-computing-unit-worker.sh (#3229)

Update the script from running
target/texera-0.1-SNAPSHOT/bin/texera-run-worker to
target/texera-0.1-SNAPSHOT/bin/computing-unit-worker

Author: mengw15

core/scripts/add-computing-unit-worker.sh

@@ -1,7 +1,7 @@
 cd amber
 if [ ! -z $1 ]
 then 
-    target/texera-0.1-SNAPSHOT/bin/texera-run-worker --serverAddr $1
+    target/texera-0.1-SNAPSHOT/bin/computing-unit-worker --serverAddr $1
 else
-    target/texera-0.1-SNAPSHOT/bin/texera-run-worker
+    target/texera-0.1-SNAPSHOT/bin/computing-unit-worker
 fi