[VCDA-3455] Document known issue - cluster create task running forever due to failure to get API token

[Anirudh9794]

Signed-off-by: Aniruddha Shamasundar aniruddha.9794@gmail.com

To help us process your pull request efficiently, please include:

• If there is an error in getting API token for a TKGm cluster, the cluster create task will run forever.
• This should be documented as a known issue.

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This change is 

[ltimothy7]

docs/cse3_1/KNOWN_ISSUES.md line 241 at r1 (raw file):

### Task for create cluster goes on forever even when cluster create has failed in CSE server
CSE server with versions 3.1.1, 3.1.2, 3.1.3 and 3.1.4 are impacted. The issue will happen when the user's role used to deploy a TKGm kubernetes cluster is missing "Manage user's own API token" right. The cluster create task will not be marked as "failed" even when CSE server logs indicate that the cluster creation has failed.
Adding the missing "Manage user's own API token" right to the user's role and re-attemplting the cluster creation should fix the issue.

minor: type "reattempting"

[Anirudh9794]

docs/cse3_1/KNOWN_ISSUES.md line 241 at r1 (raw file):

Previously, rocknes wrote…

> The customer will face this issue * This issue will be observed, if the users used ....

Done.