fix: Revert getPurl change

For now lets remove this change and get this PR merged

Author: GeekMasher

src/ghastoolkit/supplychain/dependencies.py

@@ -51,7 +51,7 @@ def getPurl(self, version: bool = True) -> str:
         if self.manager:
             result += f"{self.manager.lower()}/"
         if self.namespace:
-            result += f"{self.namespace}:"
+            result += f"{self.namespace}/"
         result += f"{self.name}"
         if version and self.version:
             result += f"@{self.version}"
@@ -231,4 +231,4 @@ def updateDependency(self, dependency: Dependency):
     def updateDependencies(self, dependencies: "Dependencies"):
         """Update a list of dependencies."""
         for dep in dependencies:
-            self.updateDependency(dep)
+            self.updateDependency(dep)