Issue with 1.3.0 when using ESM

[tsteckenborn]

Due to the addition of:

https://github.com/cap-js/telemetry/blame/ecd32e9e10b225ba8665169c50769e7147654273/cds-plugin.js#L16

It may now fail using ESM / TypeScript, with the error:

node:internal/modules/esm/resolve:314
  return new ERR_PACKAGE_PATH_NOT_EXPORTED(
         ^

Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: Package subpath './package.json' is not defined by "exports" in /Users/[...]/node_modules/@opentelemetry/api/package.json
    at exportsNotFound (node:internal/modules/esm/resolve:314:10)
    at packageExportsResolve (node:internal/modules/esm/resolve:662:9)
    at resolveExports (node:internal/modules/cjs/loader:640:36)
    at Function._findPath (node:internal/modules/cjs/loader:748:31)
    at Function._resolveFilename (node:internal/modules/cjs/loader:1235:27)
    at Function._load (node:internal/modules/cjs/loader:1075:27)
    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
    at wrapModuleLoad (node:internal/modules/cjs/loader:219:24)
    at Module.require (node:internal/modules/cjs/loader:1340:12)
    at require (node:internal/modules/helpers:138:16) {
  code: 'ERR_PACKAGE_PATH_NOT_EXPORTED'
}