我最终通过创建一个松散地基于rewrite-imports plugin的Rollup插件来解决这个问题。它在动态导入中将.js的所有示例替换为.gz.js：

const MagicString = require('magic-string');

function rewriteGzipImports() {
    // match dynamic imports with .js but not .gz.js
    const patternDImport = new RegExp(/"\.\/([\w\-.]+)\.js(?<!\.gz\.js)"/, 'mg');
    return {
        name: 'rewriteImports',
        renderChunk(code) {
            const magicString = new MagicString(code);
            let hasReplacements = false;
            let match;
            let start;
            let end;
            let replacement;

            function replaceImport() {
                hasReplacements = true;
                start = match.index + 3;
                end = start + match[1].length;
                replacement = String(match[1].replace(match[1], match[1] + '.gz'));
                magicString.overwrite(start, end, replacement);
            }

            // work against dynamic imports
            while (match = patternDImport.exec(code)) {
                replaceImport();
            }

            if (!hasReplacements) {
                return null;
            }
            return { code: magicString.toString() };
        }
    };
}