Bump dev (#297)

yarn.lock

@@ -2914,9 +2914,9 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@polkadot/dev@npm:^0.51.6":
-  version: 0.51.6
-  resolution: "@polkadot/dev@npm:0.51.6"
+"@polkadot/dev@npm:^0.51.7":
+  version: 0.51.7
+  resolution: "@polkadot/dev@npm:0.51.7"
   dependencies:
     "@babel/cli": ^7.8.4
     "@babel/core": ^7.9.0
@@ -2996,7 +2996,7 @@ __metadata:
     polkadot-exec-typedoc: scripts/polkadot-exec-typedoc.js
     polkadot-exec-vuepress: scripts/polkadot-exec-vuepress.js
     polkadot-exec-webpack: scripts/polkadot-exec-webpack.js
-  checksum: 2/05d32b22a912e1b283b3dbabd7a73764058b1f6731b6f0a999cad23426311ef8f7a5a27ad2dd405909a5e356a5abbc15d41bd2ed9af2339d86866c6394736bfa
+  checksum: 2/e4c7a2e512343f627e068fc12b696ed4a2dd95c1e608885738b6bcbf979d9aac85940699e7d696cee49e5a3adb66e7ed2635bd260f6fe18b018d7b6df5ca71f9
   languageName: node
   linkType: hard
 
@@ -3111,7 +3111,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@polkadot/types@npm:1.8.0-beta.8, @polkadot/types@npm:^1.8.0-beta.7":
+"@polkadot/types@npm:1.8.0-beta.8, @polkadot/types@npm:^1.8.0-beta.8":
   version: 1.8.0-beta.8
   resolution: "@polkadot/types@npm:1.8.0-beta.8"
   dependencies:
@@ -3144,7 +3144,7 @@ __metadata:
     "@ledgerhq/hw-transport-u2f": ^5.11.0
     "@ledgerhq/hw-transport-webusb": ^5.11.0
     "@polkadot/keyring": ^2.6.2
-    "@polkadot/types": ^1.8.0-beta.7
+    "@polkadot/types": ^1.8.0-beta.8
     "@polkadot/util": ^2.6.2
     "@types/ledgerhq__hw-transport-node-hid": ^4.22.1
     "@types/ledgerhq__hw-transport-u2f": ^4.21.1
@@ -17739,7 +17739,7 @@ __metadata:
   dependencies:
     "@babel/core": ^7.9.0
     "@babel/runtime": ^7.9.0
-    "@polkadot/dev": ^0.51.6
+    "@polkadot/dev": ^0.51.7
     "@polkadot/ts": ^0.3.14
     "@types/jest": ^25.1.4
     babel-plugin-transform-vue-template: ^0.4.2