update setproctitle to use with py39

ci/travis/install-dependencies.sh

@@ -333,7 +333,7 @@ install_dependencies() {
     install_node
   fi
 
-  CC=gcc pip install psutil setproctitle==1.1.10 --target="${WORKSPACE_DIR}/python/ray/thirdparty_files"
+  CC=gcc pip install psutil setproctitle --target="${WORKSPACE_DIR}/python/ray/thirdparty_files"
 }
 
 install_dependencies "$@"

python/setup.py

@@ -270,7 +270,7 @@ def build(build_python, build_java):
     # that certain flags will not be passed along such as --user or sudo.
     # TODO(rkn): Fix this.
     if not os.getenv("SKIP_THIRDPARTY_INSTALL"):
-        pip_packages = ["psutil", "setproctitle==1.1.10"]
+        pip_packages = ["psutil", "setproctitle"]
         subprocess.check_call(
             [
                 sys.executable, "-m", "pip", "install", "-q",