Bump common (w/ rxjs 7) (#3736)

* Bump common (w/ rxjs 7)

* Adjust

* pre bump

* Cleanup imports

* Add missing switchMap

* CHANGELOG

* Remove duplicate imports

* Bump common

* Direct rxjs import

packages/types/src/packageInfo.ts

@@ -3,4 +3,4 @@
 
 // Auto-generated by @polkadot/dev, do not edit
 
-export const packageInfo = { name: '@polkadot/types', version: '4.17.2-7' };
+export const packageInfo = { name: '@polkadot/types', version: '4.17.2-8' };

packages/types/src/types/index.ts

@@ -14,4 +14,4 @@ export * from './interfaces';
 export * from './registry';
 
 // used inside augmented definitions
-export type { Observable } from '@polkadot/x-rxjs';
+export type { Observable } from 'rxjs';

packages/types/src/types/registry.ts

@@ -1,9 +1,9 @@
 // Copyright 2017-2021 @polkadot/types authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
+import type { Observable } from 'rxjs';
 import type { Metadata } from '@polkadot/metadata';
 import type { BN } from '@polkadot/util';
-import type { Observable } from '@polkadot/x-rxjs';
 import type { ExtDef } from '../extrinsic/signedExtensions/types';
 import type { CodecHash, Hash } from '../interfaces/runtime';
 import type { ChainProperties } from '../interfaces/system';