Bandersnatch dependency update (#2114)

Closes https://github.com/paritytech/polkadot-sdk/issues/2013

.config/zepter.yaml

@@ -15,8 +15,6 @@ workflows:
         '--features=try-runtime,runtime-benchmarks,std',
         # Do not try to add a new section into `[features]` of `A` only because `B` expose that feature. There are edge-cases where this is still needed, but we can add them manually.
         '--left-side-feature-missing=ignore',
-        # Enabling this feature somehow pulls in two versions of `sp-runtime-interface` and makes it impossible to build that crate with `cargo b -p sp-runtime-interface`. We therefore disable it for now.
-        '--ignore-missing-propagate=sp-core/std:bandersnatch_vrfs/std',
         # Ignore the case that `A` it outside of the workspace. Otherwise it will report errors in external dependencies that we have no influence on.
         '--left-side-outside-workspace=ignore',
         # Some features imply that they activate a specific dependency as non-optional. Otherwise the default behaviour with a `?` is used.

substrate/primitives/core/Cargo.toml

@@ -58,7 +58,7 @@ sp-runtime-interface = { path = "../runtime-interface", default-features = false
 # bls crypto
 w3f-bls = { version = "0.1.3", default-features = false, optional = true}
 # bandersnatch crypto
-bandersnatch_vrfs = { git = "https://github.com/w3f/ring-vrf", rev = "4b09416", default-features = false, optional = true }
+bandersnatch_vrfs = { git = "https://github.com/w3f/ring-vrf", rev = "cbc342e", default-features = false, optional = true }
 
 [dev-dependencies]
 criterion = "0.4.0"
@@ -76,7 +76,7 @@ bench = false
 default = [ "std" ]
 std = [
 	"array-bytes",
-	"bandersnatch_vrfs?/getrandom",
+	"bandersnatch_vrfs?/std",
 	"bip39/rand",
 	"bip39/std",
 	"blake2/std",

substrate/primitives/crypto/ec-utils/Cargo.toml

@@ -37,6 +37,7 @@ std = [
 	"ark-bw6-761-ext?/std",
 	"ark-bw6-761?/std",
 	"ark-ec?/parallel",
+	"ark-ec?/std",
 	"ark-ed-on-bls12-377-ext?/std",
 	"ark-ed-on-bls12-377?/std",
 	"ark-ed-on-bls12-381-bandersnatch-ext?/std",