chore(sources/env): bump gosettings to v0.3.0-rc13

- Use `RetroKeys` option with env.* method calls
- Use `CSV*` typed methods
- Inject `handleDeprecatedKey` function

internal/configuration/sources/secrets/helpers_test.go

@@ -50,7 +50,7 @@ func Test_readSecretFileAsStringPtr(t *testing.T) {
 			source: func(tempDir string) Source {
 				secretFilepath := filepath.Join(tempDir, "secret_file")
 				environ := []string{"SECRET_FILE=" + secretFilepath}
-				return Source{env: *env.New(environ)}
+				return Source{env: *env.New(environ, nil)}
 			},
 			defaultSecretFileName: "default_secret_file",
 			secretPathEnvKey:      "SECRET_FILE",