Update reference to phylum-dev repo

Author: peterjmorgan

README.md

@@ -24,7 +24,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - id: analyze-pr-test
-        uses: peterjmorgan/[email protected]
+        uses: phylum-dev/[email protected]
         with:
           vul_threshold: 0.6
           mal_threshold: 0.6