Fix another v16 ref

Author: crobert-1

packaging/tests/installer_test.py

@@ -379,7 +379,7 @@ def test_installer_with_instrumentation_default(distro, arch, method):
         pytest.skip("opensuse-12 arm64 no longer supported")
 
     # minimum supported node version required for profiling
-    node_version = 16
+    node_version = 18
     if arch == "arm64" and distro in ("centos-7"):
         # g++ for these distros is too old to build/compile splunk-otel-js with node v16:
         #   g++: error: unrecognized command line option '-std=gnu++14'