Update dependency rxjs to v6

[renovate-tests]

This Pull Request updates dependency rxjs from v5.5.5 to v6.2.0

Release Notes

v6.2.0

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Bug Fixes

• ajax: Handle timeouts as errors (#​3653) (e4128ea)
• ajax: RxJS v6 TimeoutError is missing name property (576d943)
• isObservable: Fix throwing error when testing isObservable(null) (#​3688) (c9acc61)
• range: Range should be same for every subscriber (#​3707) (9642133)
• skipUntil: fix skipUntil when innerSubscription is null (#​3686) (4226432)
• TestScheduler: restore run changes upon error (27cb9b6)
• TimeoutError: Add name to TimeoutError (44042d0)
• WebSocketSubject: Check to see if WebSocket exists in global scope (#​3694) (2db0788)

Features

• endWith: add new operator endWith (#​3679) (537fe7d)

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v6.1.0

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Bug Fixes

• ajax: Handle timeouts as errors (#​3653) (e4128ea)
• ajax: RxJS v6 TimeoutError is missing name property (576d943)
• isObservable: Fix throwing error when testing isObservable(null) (#​3688) (c9acc61)
• range: Range should be same for every subscriber (#​3707) (9642133)
• skipUntil: fix skipUntil when innerSubscription is null (#​3686) (4226432)
• TestScheduler: restore run changes upon error (27cb9b6)
• TimeoutError: Add name to TimeoutError (44042d0)
• WebSocketSubject: Check to see if WebSocket exists in global scope (#​3694) (2db0788)

Features

• endWith: add new operator endWith (#​3679) (537fe7d)

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v6.0.0

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Bug Fixes

• audit: will not crash if duration is synchronous (#​3608) (76b7e27), closes #​2743
• delay: fix memory leak (#​3605) (96f05b0)

Features

• isObservable: a new method for checking to see if an object is an RxJS Observable (edb33e5)

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v5.5.11

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v5.5.10

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v5.5.9

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v5.5.8

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v5.5.7

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v5.5.6

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Bug Fixes

• Observable: rethrow errors when syncErrorThrowable and inherit it from destination. Fixes #​2813 (541b49d)

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This PR has been generated by Renovate Bot.