Bump github.com/consensys/gnark-crypto

Bumps [github.com/consensys/gnark-crypto](https://github.com/consensys/gnark-crypto) from 0.4.1-0.20210426202927-39ac3d4b3f1f to 0.12.0.
- [Release notes](https://github.com/consensys/gnark-crypto/releases)
- [Changelog](https://github.com/Consensys/gnark-crypto/blob/master/CHANGELOG.md)
- [Commits](https://github.com/consensys/gnark-crypto/commits/v0.12.0)

---
updated-dependencies:
- dependency-name: github.com/consensys/gnark-crypto
  dependency-type: direct:production
...

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

go.mod

@@ -20,7 +20,7 @@ require (
 	github.com/cespare/cp v0.1.0
 	github.com/cespare/xxhash/v2 v2.1.1
 	github.com/cloudflare/cloudflare-go v0.14.0
-	github.com/consensys/gnark-crypto v0.4.1-0.20210426202927-39ac3d4b3f1f
+	github.com/consensys/gnark-crypto v0.12.0
 	github.com/davecgh/go-spew v1.1.1
 	github.com/deckarep/golang-set v0.0.0-20180603214616-504e848d77ea
 	github.com/deepmap/oapi-codegen v1.8.2 // indirect
@@ -65,7 +65,7 @@ require (
 	github.com/rs/cors v1.7.0
 	github.com/shirou/gopsutil v3.21.4-0.20210419000835-c7a38de76ee5+incompatible
 	github.com/shopspring/decimal v1.2.0
-	github.com/stretchr/testify v1.7.0
+	github.com/stretchr/testify v1.8.2
 	github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7
 	github.com/tklauser/go-sysconf v0.3.5 // indirect
 	github.com/tyler-smith/go-bip39 v1.0.1-0.20181017060643-dbb3b84ba2ef
@@ -77,7 +77,6 @@ require (
 	gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce
 	gopkg.in/olebedev/go-duktape.v3 v3.0.0-20200619000410-60c24ae608a6
 	gopkg.in/urfave/cli.v1 v1.20.0
-	gopkg.in/yaml.v2 v2.4.0 // indirect
 )
 
 // Use our fork which disables bitcode