Bump proc-macro2 from 1.0.50 to 1.0.52 (#2312)

Bumps [proc-macro2](https://github.com/dtolnay/proc-macro2) from 1.0.50 to 1.0.52.
- [Release notes](https://github.com/dtolnay/proc-macro2/releases)
- [Commits](https://github.com/dtolnay/proc-macro2/compare/1.0.50...1.0.52)

---
updated-dependencies:
- dependency-name: proc-macro2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Cargo.lock

@@ -9121,9 +9121,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.50"
+version = "1.0.52"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ef7d57beacfaf2d8aee5937dab7b7f28de3cb8b1828479bb5de2a7106f2bae2"
+checksum = "1d0e1ae9e836cc3beddd63db0df682593d7e2d3d891ae8c9083d2113e1744224"
 dependencies = [
  "unicode-ident",
 ]

pallets/parachain-system/proc-macro/Cargo.toml

@@ -10,7 +10,7 @@ proc-macro = true
 
 [dependencies]
 syn = "1.0.109"
-proc-macro2 = "1.0.50"
+proc-macro2 = "1.0.52"
 quote = "1.0.23"
 proc-macro-crate = "1.3.1"