Bump proc-macro2 from 1.0.60 to 1.0.63 (#1031)

* Bump proc-macro2 from 1.0.60 to 1.0.63

Bumps [proc-macro2](https://github.com/dtolnay/proc-macro2) from 1.0.60 to 1.0.63.
- [Release notes](https://github.com/dtolnay/proc-macro2/releases)
- [Commits](dtolnay/proc-macro2@1.0.60...1.0.63)

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

Signed-off-by: dependabot[bot] <[email protected]>

* Update Cargo.toml

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Niklas Adolfsson <[email protected]>
Co-authored-by: Alexandru Vasile <[email protected]>

Cargo.toml

@@ -55,7 +55,7 @@ jsonrpsee = { version = "0.16" }
 pretty_assertions = "1.0.0"
 primitive-types = { version = "0.12.1", default-features = false, features = ["codec", "scale-info", "serde"] }
 proc-macro-error = "1.0.4"
-proc-macro2 = "1.0.60"
+proc-macro2 = "1.0.63"
 quote = "1.0.29"
 regex = "1.8.4"
 scale-info = "2.8.0"