Bump deps (#861)

* Bump deps

* Align with published common

* Fix rxjs to 6.4.0 (false deprecations on 6.5.1)

packages/api-derive/src/chain/bestNumberLag.ts

@@ -24,10 +24,10 @@ import { bestNumberFinalized } from './bestNumberFinalized';
  */
 export function bestNumberLag (api: ApiInterface$Rx) {
   return (): Observable<BlockNumber> =>
-    combineLatest(
+    combineLatest([
       bestNumber(api)(),
       bestNumberFinalized(api)()
-    ).pipe(
+    ]).pipe(
       map(([bestNumber, bestNumberFinalized]) =>
         new BlockNumber(bestNumber.sub(bestNumberFinalized))
       ),

packages/api-derive/src/chain/getHeader.ts

@@ -25,12 +25,12 @@ import { HeaderAndValidators } from './subscribeNewHead';
 export function getHeader (api: ApiInterface$Rx) {
   return (hash: Uint8Array | string): Observable<HeaderExtended | undefined> =>
     // tslint:disable-next-line
-    (combineLatest(
+    (combineLatest([
       api.rpc.chain.getHeader(hash) as Observable<Header>,
       api.query.session
         ? api.query.session.validators.at(hash)
         : of([])
-    ) as Observable<HeaderAndValidators>).pipe(
+    ]) as Observable<HeaderAndValidators>).pipe(
       map(([header, validators]) =>
         new HeaderExtended(header, validators)
       ),

packages/api-derive/src/chain/subscribeNewHead.ts

@@ -30,7 +30,7 @@ export function subscribeNewHead (api: ApiInterface$Rx) {
           header && !!header.blockNumber
         ),
         switchMap((header: Header): Observable<HeaderAndValidators> =>
-          (combineLatest(
+          (combineLatest([
             of(header),
             // theoretically we could combine at the first call with session.validators(), however
             // we make 100% sure we actually get the validators at a specific block so when these
@@ -38,7 +38,7 @@ export function subscribeNewHead (api: ApiInterface$Rx) {
             api.query.session
               ? api.query.session.validators.at(header.hash)
               : of([])
-          ) as Observable<HeaderAndValidators>)
+          ]) as Observable<HeaderAndValidators>)
         ),
         map(([header, validators]) =>
           new HeaderExtended(header, validators)