update proc_macro_error to proc_macro_error2 (#1767)

closes #1757

Cargo.lock

@@ -3604,27 +3604,25 @@ dependencies = [
 ]
 
 [[package]]
-name = "proc-macro-error"
-version = "1.0.4"
+name = "proc-macro-error-attr2"
+version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
+checksum = "96de42df36bb9bba5542fe9f1a054b8cc87e172759a1868aa05c1f3acc89dfc5"
 dependencies = [
- "proc-macro-error-attr",
  "proc-macro2",
  "quote",
- "syn 1.0.109",
- "version_check",
 ]
 
 [[package]]
-name = "proc-macro-error-attr"
-version = "1.0.4"
+name = "proc-macro-error2"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
+checksum = "11ec05c52be0a07b08061f7dd003e7d7092e0472bc731b4af7bb1ef876109802"
 dependencies = [
+ "proc-macro-error-attr2",
  "proc-macro2",
  "quote",
- "version_check",
+ "syn 2.0.60",
 ]
 
 [[package]]
@@ -5757,7 +5755,7 @@ version = "0.37.0"
 dependencies = [
  "darling 0.20.10",
  "parity-scale-codec",
- "proc-macro-error",
+ "proc-macro-error2",
  "quote",
  "sc-executor",
  "sc-executor-common",

Cargo.toml

@@ -89,7 +89,7 @@ indoc = "2"
 jsonrpsee = { version = "0.24.3" }
 pretty_assertions = "1.4.0"
 primitive-types = { version = "0.12.2", default-features = false }
-proc-macro-error = "1.0.4"
+proc-macro-error2 = "2.0.0"
 proc-macro2 = "1.0.86"
 quote = "1.0.37"
 regex = { version = "1.10.6", default-features = false }

macro/Cargo.toml

@@ -23,7 +23,7 @@ proc-macro = true
 [dependencies]
 codec = { package = "parity-scale-codec", workspace = true }
 darling = { workspace = true }
-proc-macro-error = { workspace = true }
+proc-macro-error2 = { workspace = true }
 syn = { workspace = true }
 quote = { workspace = true }
 subxt-codegen = { workspace = true, features = ["fetch-metadata"] }

macro/src/lib.rs

@@ -9,7 +9,7 @@
 use codec::Decode;
 use darling::{ast::NestedMeta, FromMeta};
 use proc_macro::TokenStream;
-use proc_macro_error::{abort_call_site, proc_macro_error};
+use proc_macro_error2::{abort_call_site, proc_macro_error};
 use quote::ToTokens;
 use scale_typegen::typegen::{
     settings::substitutes::path_segments,