Bump syn from 1.0.60 to 1.0.63

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

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Cargo.lock

@@ -13,6 +13,6 @@ proc-macro = true
 
 [dependencies]
 diem-workspace-hack = { path = "../../workspace-hack" }
-syn = { version = "1.0.58", features = ["extra-traits"] }
+syn = { version = "1.0.63", features = ["extra-traits"] }
 quote = "1.0.9"
 proc-macro2 = "1.0.24"

common/logger/derive/Cargo.toml

@@ -10,7 +10,7 @@ license = "Apache-2.0"
 proc-macro = true
 
 [dependencies]
-syn = "1.0.58"
+syn = "1.0.63"
 quote = "1.0.9"
 proc-macro2 = "1.0.24"
 diem-workspace-hack = { path = "../workspace-hack" }

common/num-variants/Cargo.toml

@@ -13,7 +13,7 @@ edition = "2018"
 proc-macro = true
 
 [dependencies]
-syn = { version = "1.0.58", features = ["derive"] }
+syn = { version = "1.0.63", features = ["derive"] }
 quote = "1.0.9"
 proc-macro2 = "1.0.24"