WIP: Embed Jemalloc in Sui Node

[RyanSquared]

Description

Use the tikv-jemallocator crate to define a #[global_allocator], and enable the jemalloc feature of librocksdb-sys to leverage builtin jemalloc.

Test plan

How did you test the new or updated feature?

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Release notes

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• [ ] Protocol:
• [X] Nodes (Validators and Full nodes): Embed Jemalloc instead of using LD_PRELOAD; no change required.
• [ ] gRPC:
• [ ] JSON-RPC:
• [ ] GraphQL:
• [ ] CLI:
• [ ] Rust SDK:

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This should not be merged as-is as it may affect the performance of nodes even outside of sui-node-deterministic. While there should be no noticeable difference, I haven't been able to do a proper comparison by myself. I am requesting help from @jnaulty to get some performance testing on this to see how it compares versus the static glibc malloc.

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[jnaulty]

closing due to: https://github.com/MystenLabs/sui/pull/22517