Update federatedcode purl mining checkpoint

Author: AyanSinhaMahapatra

pypi/packages_checkpoint.json

@@ -1,15 +1,3 @@
 {
-    "packages_mined": [
-        "pkg:pypi/0-.-.-.-.-.-.-.-.-.-.-.-.-0",
-        "pkg:pypi/00101s",
-        "pkg:pypi/001-hello-uv",
-        "pkg:pypi/00smalinux",
-        "pkg:pypi/01changer",
-        "pkg:pypi/02122group14",
-        "pkg:pypi/0pencv",
-        "pkg:pypi/0wneg",
-        "pkg:pypi/1",
-        "pkg:pypi/101703488-sargun",
-        "pkg:pypi/102003161-hunar-topsis"
-    ]
+    "packages_mined": []
 }