Crash when packages has object as readme property in package.json

[ArsArmandi]

When executing the scanner on certain dependencies, it crashes with error:

/usr/local/lib/node_modules/license-checker-rseidelsohn/lib/indexHelpers.js:163
        currentExtendedPackageJson?.readme?.toLowerCase()?.indexOf('no readme data found') === -1
                                            ^

TypeError: currentExtendedPackageJson?.readme?.toLowerCase is not a function
    at Object.storeReadmeInJsonIfExists (/usr/local/lib/node_modules/license-checker-rseidelsohn/lib/indexHelpers.js:163:45)
    at recursivelyCollectAllDependencies (/usr/local/lib/node_modules/license-checker-rseidelsohn/lib/index.js:123:13)
    at /usr/local/lib/node_modules/license-checker-rseidelsohn/lib/index.js:324:20
    at Array.forEach (<anonymous>)
    at recursivelyCollectAllDependencies (/usr/local/lib/node_modules/license-checker-rseidelsohn/lib/index.js:312:62)
    at /usr/local/lib/node_modules/license-checker-rseidelsohn/lib/index.js:324:20
    at Array.forEach (<anonymous>)
    at recursivelyCollectAllDependencies (/usr/local/lib/node_modules/license-checker-rseidelsohn/lib/index.js:312:62)
    at /usr/local/lib/node_modules/license-checker-rseidelsohn/lib/index.js:422:54
    at /usr/local/lib/node_modules/license-checker-rseidelsohn/node_modules/read-installed-packages/read-installed.js:139:5

Node.js v21.6.1

This happens with the following dependencies:

@commercetools-uikit\constraints
@commercetools-uikit\notifications
@commercetools-frontend\mc-scripts\node_modules@commercetools-uikit\constraints
@commercetools-uikit\async-select-input\node_modules@commercetools-uikit\constraints

This happens, because the license-checker does not check the type of the readme property.
indexHelper.js Line 159:

if (
    typeof modulePath !== 'string' ||
    typeof currentExtendedPackageJson !== 'object' ||
    modulePath === '' ||
    currentExtendedPackageJson?.readme?.toLowerCase()?.indexOf('no readme data found') === -1
) {
    return;
}

In those packages the readme property contains a reference to some other typescript files. I would suggest to overwrite this property with the README.md file, since this is the behavior of the license-checker when the property is not set.

if (
    typeof modulePath !== 'string' ||
    typeof currentExtendedPackageJson !== 'object' ||
    modulePath === '' ||
    (typeof currentExtendedPackageJson?.readme === 'string' &&
        currentExtendedPackageJson?.readme?.toLowerCase()?.indexOf('no readme data found') === -1)
) {
    return;
}