If the server is running for a long time, then Node devours all the memory?

Question

Node.js

What could be the reason? Gradually, my RAM is simply eaten by the node process, or it does not have enough memory and the server crashes with an error.
My webpack config:
-

const path = require('path')
const { CleanWebpackPlugin } = require('clean-webpack-plugin')
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const BrowserSyncPlugin = require('browser-sync-webpack-plugin')
const CopyPlugin = require("copy-webpack-plugin");
const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;

module.exports = {
    context: path.resolve(__dirname, 'src'),

    entry: {
        main: ['@babel/polyfill', '/app.js'],

    },
    output: {
        path: path.resolve(__dirname, 'dist'),
        filename: 'js/[name].js'
    },
    watchOptions: {
        aggregateTimeout: 200,
        poll: 1000,
    },

    plugins: [
        new CleanWebpackPlugin(),
        new MiniCssExtractPlugin({
            filename: 'css/[name].css',
        }),
        new BrowserSyncPlugin({
            proxy: 'wp-webpack/',
            host: 'wp-webpack/',
            snippetOptions: {
                ignorePaths: "/wp-admin/**"
            },
            files: '**/**/**.php',
            reload: true,

        }),
        new CopyPlugin({
            patterns: [
                { from: "images", to: "images" },
                { from: "fonts", to: "fonts" },
            ],
        }),
        new BundleAnalyzerPlugin()

    ],
    module: {
        rules: [
            {
                test: /\.css$/i,
                use: [
                    MiniCssExtractPlugin.loader,
                    "css-loader",
                    {
                        loader: "postcss-loader",
                        options: {
                            postcssOptions: {
                                plugins: [
                                    require('autoprefixer'),
                                ],
                            },
                        },
                    },
                ],
            },
            {
                test: /\.s[ac]ss$/i,
                use: [
                    MiniCssExtractPlugin.loader,
                    "css-loader",
                    {
                        loader: "postcss-loader",
                        options: {
                            postcssOptions: {
                                plugins: [
                                    require('autoprefixer'),
                                ],
                            },
                        },
                    },
                    "sass-loader",
                ],
            },
            {
                test: /\.(png|jpe?g|gif|svg)$/i,
                type: 'asset/resource',
                generator: {
                    filename: './images/[name][ext]',
                },
            },
            {
                test: /\.(ttf|woff|woff2)$/,
                type: 'asset/resource',
                generator: {
                    filename: './fonts/[name][ext]',
                },
            },
            {
                test: /\.m?js$/,
                exclude: /(node_modules|bower_components)/,
                use: {
                    loader: 'babel-loader',
                    options: {
                        presets: ['@babel/preset-env']
                    }
                }
            }

        ]
    }
}