Update substrate dependencies

Cargo.lock

@@ -2859,7 +2859,7 @@ dependencies = [
  "der",
  "elliptic-curve",
  "rfc6979",
- "signature 1.6.4",
+ "signature",
 ]
 
 [[package]]
@@ -2868,7 +2868,7 @@ version = "1.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e9c280362032ea4203659fc489832d0204ef09f247a0506f170dafcac08c369"
 dependencies = [
- "signature 2.0.0",
+ "signature",
 ]
 
 [[package]]
@@ -11503,12 +11503,6 @@ dependencies = [
  "rand_core 0.6.4",
 ]
 
-[[package]]
-name = "signature"
-version = "2.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8fe458c98333f9c8152221191a77e2a44e8325d0193484af2e9421a53019e57d"
-
 [[package]]
 name = "simba"
 version = "0.8.0"
@@ -14187,7 +14181,7 @@ dependencies = [
  "serde",
  "sha-1 0.9.8",
  "sha2 0.9.8",
- "signature 1.6.4",
+ "signature",
  "subtle",
  "thiserror",
  "tokio",