GULP. Compresses images with .jpg extension only. What is the problem?

Question

gulp.js

I'm learning to work with GULP and there are problems with image compression. I installed the imagemin plugin, for the test I downloaded 4 pictures with different extensions (.jpg, .ico, .png, .svg), I run gulp and only a compressed .jpg image appears in the dist/src/img folder. Why doesn't gulp see other extensions?

File hierarchy:


gulpfile.js:

let project_folder = "dist";
let source_folder = "src";

let path = {
  build: {
    html: project_folder + "/",
    css: project_folder + "/css/",
    js: project_folder + "/js/",
    img: project_folder + "/img/",
    fonts: project_folder + "/fonts/"
  },
  src: {
    html: [source_folder + "/*.html", "!" + source_folder + "/_*.html"],
    css: source_folder + "/scss/style.scss",
    js: source_folder + "/js/script.js",
    img: source_folder + "/img/**/*.{jpg, png, svg, gif, ico, webp}",
    fonts: source_folder + "/fonts/*.ttf"
  },
  watch: {
    html: source_folder + "/**/*.html",
    css: source_folder + "/scss/**/*.scss",
    js: source_folder + "/js/**/*.js",
    img: source_folder + "/img/**/*.{jpg, png, svg, gif, ico, webp}",
  },
  clean: "./" + project_folder + "/"
}

let {src, dest} = require('gulp'),
  gulp = require('gulp'),
  browsersync = require("browser-sync").create(),
  fileinclude = require("gulp-file-include"),
  del = require("del"),
  scss = require("gulp-sass"),
  autoprefixer = require("gulp-autoprefixer"),
  group_media = require("gulp-group-css-media-queries"),
  clean_css = require("gulp-clean-css"),
  rename = require("gulp-rename"),
  uglify = require("gulp-uglify-es").default,
  imagemin = require("gulp-imagemin"),
  pngquant = require("imagemin-pngquant");

function browserSync() {
  browsersync.init({
    server: {
      baseDir: "./" + project_folder + "/"
    },
    port: 3000,
    notify: false
  })
}

function html() {
  return src(path.src.html)
    .pipe(fileinclude())
    .pipe(dest(path.build.html))
    .pipe(browsersync.stream())
}

function css() {
  return src(path.src.css)
    .pipe(
      scss({
        outputStyle: "expanded"
      })
    )
    .pipe(
      group_media()
    )
    .pipe(
      autoprefixer({
        overrideBrowserslist: ["last 5 version"],
        cascade: true
      })
    )
    .pipe(dest(path.build.css))
    .pipe(clean_css())
    .pipe(
      rename({
        extname: ".min.css"
      })
    )
    .pipe(dest(path.build.css))
    .pipe(browsersync.stream())
}

function js() {
  return src(path.src.js)
    .pipe(fileinclude())
    .pipe(dest(path.build.js))
    .pipe(
      uglify()
    )
    .pipe(
      rename({
        extname: ".min.js"
      })
    )
    .pipe(dest(path.build.js))
    .pipe(browsersync.stream())
}

function images() {
  return src(path.src.img)
    .pipe(
      imagemin({
        progressive: true,
        svgoPlugins: [{ removeViewBox: false}],
        interlaced: true,
        optimizationLevel: 3, // 0 to 7
        use: [pngquant()]
      })
    )
    .pipe(dest(path.build.img))
    .pipe(browsersync.stream())
}

function watchFiles() {
  gulp.watch([path.watch.html], html);
  gulp.watch([path.watch.css], css);
  gulp.watch([path.watch.js], js);
  gulp.watch([path.watch.img], images);
}

function clean() {
  return del(path.clean);
}

let build = gulp.series(clean, gulp.parallel(js, css, html, images));
let watch = gulp.parallel(build, watchFiles, browserSync);

exports.images = images;
exports.js = js;
exports.css = css;
exports.html = html;
exports.build = build;
exports.watch = watch;
exports.default= watch;