Fix ERR_OSSL_EVP_UNSUPPORTED on Node 17+ (OpenSSL 3.0) by using xxhash64

[GujjetiMokshith]

Fixes #17216.

When running react-scripts on Node 17+ (which uses OpenSSL 3.0), the build and dev server crash because Webpack 5 natively defaults to the md4 hash algorithm, which is unsupported in OpenSSL 3.0.

This PR sets hashFunction: 'xxhash64' in the Webpack output configuration, which is extremely fast and avoids the need for the --openssl-legacy-provider flag workaround.

[meta-cla]

Hi @GujjetiMokshith!

Thank you for your pull request and welcome to our community.

Action Required

In order to merge any pull request (code, docs, etc.), we require contributors to sign our Contributor License Agreement, and we don't seem to have one on file for you.

Process

In order for us to review and merge your suggested changes, please sign at https://code.facebook.com/cla. If you are contributing on behalf of someone else (eg your employer), the individual CLA may not be sufficient and your employer may need to sign the corporate CLA.

Once the CLA is signed, our tooling will perform checks and validations. Afterwards, the pull request will be tagged with CLA signed. The tagging process may take up to 1 hour after signing. Please give it that time before contacting us about it.

If you have received this in error or have any questions, please contact us at cla@meta.com. Thanks!

[meta-cla]

Thank you for signing our Contributor License Agreement. We can now accept your code for this (and any) Meta Open Source project. Thanks!