passes through --allow-private-addr to validators in system perf tests (backport #18876) (#20180)

* passes through --allow-private-addr to validators in system perf tests (#18876)

(cherry picked from commit 81026f9ea5)

# Conflicts:
#	multinode-demo/bootstrap-validator.sh
#	multinode-demo/validator.sh
#	net/net.sh

* removes backport merge conflicts

* ignores RUSTSEC-2021-0115

Co-authored-by: behzad nouri <behzadnouri@gmail.com>

multinode-demo/bootstrap-validator.sh

@@ -79,6 +79,9 @@ while [[ -n $1 ]]; do
     elif [[ $1 == --accounts-db-skip-shrink ]]; then
       args+=("$1")
       shift
+    elif [[ $1 == --allow-private-addr ]]; then
+      args+=("$1")
+      shift
     elif [[ $1 == --skip-require-tower ]]; then
       maybeRequireTower=false
       shift