Disable MFA configuration in config-dev.yaml (#4672)

Comment out multi-factor authentication configuration.

Signed-off-by: Maksim Nabokikh <maksim.nabokikh@flant.com>

examples/config-dev.yaml

@@ -140,12 +140,12 @@ telemetry:
 
 # Multi-factor authentication configuration.
 # Requires DEX_SESSIONS_ENABLED=true feature flag.
-mfa:
-   authenticators:
-   - id: totp-1
-     type: TOTP
-     config:
-       issuer: "dex-1"
+# mfa:
+#   authenticators:
+#   - id: totp-1
+#     type: TOTP
+#     config:
+#       issuer: "dex-1"
 #     # Optional: limit this authenticator to specific connector types (e.g., ldap, oidc, saml).
 #     # If omitted or empty, applies to all connector types.
 #     # It is recommended to use this option to prevent MFA from being used for connectors