babylon: pass --no-bls-password on babylond start

babylond v4.3.0 prompts for a BLS key password on every start when
bls_key.json exists unless start gets --no-bls-password; without it RPC
replicas crash-loop with "failed to get BLS password: EOF".

Co-authored-by: Cursor <cursoragent@cursor.com>

babylon/scripts/init.sh

@@ -52,4 +52,4 @@ ct_configure_statesync   "$CONFIG_DIR/config.toml" "$STATESYNC_RPC"
 ct_ensure_wasm           "$HOME_DIR" "$WASM_SNAPSHOT_URL"
 ct_seed_priv_validator_state "$HOME_DIR"
 
-exec babylond start --home "$HOME_DIR" --minimum-gas-prices "$MIN_GAS" "$@"
+exec babylond start --home "$HOME_DIR" --minimum-gas-prices "$MIN_GAS" --no-bls-password "$@"