minor refactor

Author: Michael Long

entrypoint/entrypoint/pkg_vuln.py

@@ -422,12 +422,12 @@ def sort_vulns(vulns):
 
 
 def post_github_step_summary(markdown):
-    job_summary_file = "/tmp/inspector.md"
+    step_summary_path = "/tmp/inspector.md"
     if os.getenv('GITHUB_ACTIONS'):
-        job_summary_file = os.environ["GITHUB_STEP_SUMMARY"]
+        step_summary_path = os.environ["GITHUB_STEP_SUMMARY"]
 
     try:
-        with open(job_summary_file, "a") as f:
+        with open(step_summary_path, "a") as f:
             f.write(markdown)
     except Exception as e:
         logging.error(e)