update flake.lock

And some supporting changes:

* crane: It removed its dependency on nixpkgs and made overrideToolchain
  take a function for splicing reasons, but we're doing splicing
  ourselves so we can just ignore the function argument. These changes
  are in `flake.nix`.
* [NixOS/nixpkgs#347228][0]: linkerFor* were removed because the linker
  no longer needs to be different in some edge cases. Based on the
  diff of the PR that introduced this change, ccFor* are the proper
  replacements. These changes are in `cross-compilation-env.nix` in the
  compiler-and-linker-choosing section.
* [NixOS/nixpkgs#350299][1]: buildPlatform isn't at the top level
  anymore, we have to go through stdenv now. These changes are in
  `nix/shell.nix`.
* rocksdb: nixpkgs has 9.6.1 now so we need to upgrade our rust
  library to use the matching version. These changes are in
  `Cargo.toml`, `Cargo.lock`, `nix/pkgs/default/default.nix`, and
  `cross-compilation-env.nix` in the linker flags section.

[0]: https://github.com/NixOS/nixpkgs/pull/347228
[1]: https://github.com/NixOS/nixpkgs/pull/350299

Flake lock file updates:

• Updated input 'attic':
    'github:zhaofengli/attic/4dbdbee45728d8ce5788db6461aaaa89d98081f0' (2024-03-29)
  → 'github:zhaofengli/attic/48c8b395bfbc6b76c7eae74df6c74351255a095c' (2024-10-30)
• Updated input 'attic/crane':
    'github:ipetkov/crane/7195c00c272fdd92fc74e7d5a0a2844b9fadb2fb' (2023-12-18)
  → 'github:ipetkov/crane/4c6c77920b8d44cd6660c1621dea6b3fc4b4c4f4' (2024-08-06)
• Updated input 'attic/flake-compat':
    'github:edolstra/flake-compat/35bb57c0c8d8b62bbfd284272c928ceb64ddbde9' (2023-01-17)
  → 'github:edolstra/flake-compat/0f9255e01c2351cc7d116c072cb317785dd33b33' (2023-10-04)
• Added input 'attic/flake-parts':
    'github:hercules-ci/flake-parts/8471fe90ad337a8074e957b69ca4d0089218391d' (2024-08-01)
• Added input 'attic/flake-parts/nixpkgs-lib':
    follows 'attic/nixpkgs'
• Removed input 'attic/flake-utils'
• Updated input 'attic/nixpkgs':
    'github:NixOS/nixpkgs/07262b18b97000d16a4bdb003418bd2fb067a932' (2024-03-25)
  → 'github:NixOS/nixpkgs/159be5db480d1df880a0135ca0bfed84c2f88353' (2024-09-11)
• Updated input 'attic/nixpkgs-stable':
    'github:NixOS/nixpkgs/44733514b72e732bd49f5511bd0203dea9b9a434' (2024-03-26)
  → 'github:NixOS/nixpkgs/797f7dc49e0bc7fab4b57c021cdf68f595e47841' (2024-08-22)
• Added input 'attic/nix-github-actions':
    'github:nix-community/nix-github-actions/e04df33f62cdcf93d73e9a04142464753a16db67' (2024-10-24)
• Added input 'attic/nix-github-actions/nixpkgs':
    follows 'attic/nixpkgs'
• Updated input 'crane':
    'github:ipetkov/crane/109987da061a1bf452f435f1653c47511587d919' (2024-05-24)
  → 'github:ipetkov/crane/498d9f122c413ee1154e8131ace5a35a80d8fa76' (2024-10-27)
• Removed input 'crane/nixpkgs'
• Updated input 'fenix':
    'github:nix-community/fenix/b6fc5035b28e36a98370d0eac44f4ef3fd323df6' (2024-05-22)
  → 'github:nix-community/fenix/87b4d20f896c99018dde4702a9c6157b516f2a76' (2024-11-01)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/21ec8f523812b88418b2bfc64240c62b3dd967bd' (2024-05-19)
  → 'github:rust-lang/rust-analyzer/0ba893e1a00d92557ac91efb771d72eee36ca687' (2024-10-31)
• Updated input 'flake-utils':
    'github:numtide/flake-utils/b1d9ab70662946ef0850d488da1c9019f3a9752a' (2024-03-11)
  → 'github:numtide/flake-utils/c1dfcf08411b08f6b8615f7d8971a2bfa81d5e8a' (2024-09-17)
• Updated input 'nix-filter':
    'github:numtide/nix-filter/3342559a24e85fc164b295c3444e8a139924675b' (2024-03-11)
  → 'github:numtide/nix-filter/776e68c1d014c3adde193a18db9d738458cd2ba4' (2024-10-29)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/5710852ba686cc1fd0d3b8e22b3117d43ba374c2' (2024-05-21)
  → 'github:NixOS/nixpkgs/807e9154dcb16384b1b765ebe9cd2bba2ac287fd' (2024-10-29)

Cargo.lock

@@ -2484,9 +2484,9 @@ dependencies = [
 
 [[package]]
 name = "rust-librocksdb-sys"
-version = "0.22.0+9.2.1"
+version = "0.26.0+9.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eacd840bcfbba938d74f67981a32bc908fe57d1cf6f39b131cb8c3f33fe67d1c"
+checksum = "4508cf0cb12feb8185556cebc1bf2e53925b415e7b5cb3bcaaff5d90f57eae4e"
 dependencies = [
  "bindgen",
  "bzip2-sys",
@@ -2500,9 +2500,9 @@ dependencies = [
 
 [[package]]
 name = "rust-rocksdb"
-version = "0.26.0"
+version = "0.30.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa60811a194b1d25b8b7761786fe8a4a3fb962ccb15ec246a337187ebcd9b8fd"
+checksum = "98735c6ebacc6796c0f74814de76d99dd379df7afa7389c801ed11bba5782884"
 dependencies = [
  "libc",
  "rust-librocksdb-sys",