Workspace rust-version is 1.95, what the workspace needs (#1841)

`[workspace.package] rust-version` said 1.90 while `jixel` needs 1.94,
`lightcraft-ui-egui` declared 1.95 on its own and the README asks for
1.95. One declaration now, inherited by every crate; the flake's note
says the same.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011K1peyrh5MdZ6ttHkVq8Gh

Cargo.toml

@@ -6,7 +6,7 @@ members = ["crates/*", "apps/*", "xtask"]
 version = "0.8.0"
 edition = "2024"
 license = "MIT OR Apache-2.0"
-rust-version = "1.90"
+rust-version = "1.95"
 repository = "https://github.com/storytold/lightcraft"
 
 [workspace.dependencies]

crates/ui-egui/Cargo.toml

@@ -2,7 +2,7 @@
 name = "lightcraft-ui-egui"
 version.workspace = true
 edition.workspace = true
-rust-version = "1.95"
+rust-version.workspace = true
 license.workspace = true
 description = "LightCraft egui frontend (Lightroom-style UI); swappable — nothing below depends on it (L5)"
 

flake.nix

@@ -2,7 +2,7 @@
   description = "LightCraft — photo library and non-destructive raw developer, in pure Rust";
 
   inputs = {
-    # LightCraft needs edition 2024 and rustc ≥ 1.90, so the flake tracks unstable. Consumers on a
+    # LightCraft needs edition 2024 and rustc ≥ 1.95, so the flake tracks unstable. Consumers on a
     # release channel can retarget it: `inputs.lightcraft.inputs.nixpkgs.follows = "nixpkgs";`
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";