Updated so it now can either read from a path or environment variable

pyproject.toml

@@ -1,11 +1,10 @@
 [project]
 name = "lib-secret-manager"
-version = "0.2.0"
+version = "0.3.0"
 description = "Shared secret manager that consumes secrets"
 readme = "README.md"
 requires-python = ">=3.10"
 authors = [{ name = "Florian Gänsejunge" }]
-dependencies = ["simple-logger-handler"]
 
 [project.optional-dependencies]
 encryption = ["cryptography==46.0.2"]