update flakes

Author: max-baz

flake.lock

@@ -37,9 +37,9 @@
           VK_INSTANCE_LAYERS = "VK_LAYER_KHRONOS_validation";
           VK_LOADER_DEBUG = "error,warn";
           RUST_SRC_PATH = rustPlatform.rustLibSrc;
-          LIBCLANG_PATH = "${llvmPackages_12.libclang.lib}/lib";
+          LIBCLANG_PATH = "${llvmPackages_21.libclang.lib}/lib";
           BINDGEN_EXTRA_CLANG_ARGS = [
-            ''-I"${llvmPackages_12.libclang.lib}/lib/clang/${llvmPackages_12.libclang.version}/include"''
+            ''-I"${llvmPackages_21.libclang.lib}/lib/clang/${llvmPackages_21.libclang.version}/include"''
           ] ++ (builtins.map (a: ''-I"${a}/include"'') [
             glibc.dev
             libv4l.dev