update working version of rust-secp256k1-zkp to 0.7.12

Cargo.lock

@@ -1139,9 +1139,9 @@ dependencies = [
 
 [[package]]
 name = "grin_secp256k1zkp"
-version = "0.7.11"
+version = "0.7.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3af3c4c4829b3e2e7ee1d9a542833e4244912fbb887fabe44682558159b068a7"
+checksum = "b04798e32404c0af082b6a209ad4df1ab1d9ec3a5a5056f284cfa32f74e59ce6"
 dependencies = [
  "arrayvec 0.3.25",
  "cc",

util/Cargo.toml

@@ -28,5 +28,5 @@ zeroize = { version = "1.1", features =["zeroize_derive"] }
 #git = "https://github.com/mimblewimble/rust-secp256k1-zkp"
 #tag = "grin_integration_29"
 #path = "../../rust-secp256k1-zkp"
-version = "0.7.10"
+version = "0.7.12"
 features = ["bullet-proof-sizing"]