Update libdemangle to latest main and add LD command as alias of iDl

[wargio]

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• I've read the guidelines for contributing to this repository
• I made sure to follow the project's coding style
• I've documented or updated the documentation of every function and struct this PR changes. If not so I've explained why.
• I've added tests that prove my fix is effective or that my feature works (if possible)
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Detailed description

Updates libdemangle to latest main to support rust v0 demangling. also adds LD command as alias of iDl since it is easier to find it under the L command.