[llvm] [llvm-readelf] Update outdated URL (PR #120498)

[James Henderson via llvm-commits]

jh7370 wrote:

Hi @wenzhoumei, I went to merge this and I noticed that your email address is set to private in GitHub. The [LLVM Developer Policy](https://llvm.org/docs/DeveloperPolicy.html#making-and-submitting-a-patch) states the following:

> The LLVM project uses email to communicate to contributors outside of the GitHub platform about their past contributions. Primarily, our buildbot infrastructure uses emails to contact contributors about build and test failures. Therefore, the LLVM community requires contributors to have a public email address associated with their GitHub commits, so please ensure that “Keep my email addresses private” is disabled in your [account settings](https://github.com/settings/emails).

Please could you adjust the setting and let me know when you have, so that I can merge this change. Thanks!

https://github.com/llvm/llvm-project/pull/120498