Bump dev deps (#738)

packages/react-identicon/src/Identicon.tsx

@@ -74,7 +74,7 @@ class BaseIcon extends React.PureComponent<Props, State> {
           address,
           publicKey
         };
-    } catch (error) {
+    } catch {
       return {
         address: '',
         publicKey: '0x'

packages/reactnative-identicon/src/Identicon.tsx

@@ -54,7 +54,7 @@ export default class IdentityIcon extends React.PureComponent<Props, State> {
       return address === prevState.address
         ? null
         : { address, publicKey };
-    } catch (error) {
+    } catch {
       return {
         address: '',
         publicKey: '0x'

packages/ui-keyring/src/Keyring.ts

@@ -289,7 +289,7 @@ export class Keyring extends Base implements KeyringStruct {
               this.loadContract(json, key);
             }
           }
-        } catch (error) {
+        } catch {
           console.warn(`Keyring: Unable to load ${key}:${stringify(json)}`);
         }
       }
@@ -299,7 +299,7 @@ export class Keyring extends Base implements KeyringStruct {
       if (this.allowGenesis(account)) {
         try {
           this.loadInjected(account.address, account.meta, account.type);
-        } catch (error) {
+        } catch {
           console.warn(`Keyring: Unable to inject ${stringify(account)}`);
         }
       }

packages/vue-identicon/src/Identicon.ts

@@ -33,7 +33,7 @@ function encodeAccount (value: string | Uint8Array, prefix?: Prefix): Account {
     const publicKey = u8aToHex(decodeAddress(address, false, prefix));
 
     return { address, publicKey };
-  } catch (error) {
+  } catch {
     return { address: '', publicKey: '0x' };
   }
 }