chore: update to Rust 1.90 (#2916)

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## Checks
- [X] I am happy for maintainers to push small adjustments to this PR,
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same thing

Hopefully this one is mergeable as is, unlike the 1.89 upgrade.

Fixes: #2915

1 files changed, 1 insertions, 1 deletions

diff --git a/flake.nix b/flake.nix
index f42b8d27..6d503017 100644
--- a/flake.nix
+++ b/flake.nix
@@ -31,7 +31,7 @@
                 fenix.packages.${system}.fromToolchainFile
                   {
                     file = ./rust-toolchain.toml;
-                    sha256 = "sha256-+9FmLhAOezBZCOziO0Qct1NOrfpjNsXxc/8I0c7BdKE=";
+                    sha256 = "sha256-SJwZ8g0zF2WrKDVmHrVG3pD2RGoQeo24MEXnNx5FyuI=";
                   };
             in
             pkgs.makeRustPlatform {