Update run_profile.sh

run_profile.sh

@@ -1,5 +1,5 @@
 clang++ -pg -O2 -std=c++17 -fno-rtti -stdlib=libc++ -Wall -o pocketpy src/main.cpp
-time ./pocketpy benchmarks/fib.py
+time ./pocketpy benchmarks/primes.py
 mv benchmarks/gmon.out .
 gprof pocketpy gmon.out > gprof.txt
 rm gmon.out