Possible race condition when refreshing tokens

[poblouin]

Describe The Bug: There is an interval in each accessories to refresh the tokens and they run roughly at the same time when you have multiple accessories.

[2/17/2022, 7:54:57 PM] [HomebridgeSpotifySpeaker] Access token has expired, attempting token refresh
[2/17/2022, 7:54:57 PM] [HomebridgeSpotifySpeaker] Access token has expired, attempting token refresh
[2/17/2022, 7:54:57 PM] [HomebridgeSpotifySpeaker] The access token has been refreshed!
[2/17/2022, 7:54:57 PM] [HomebridgeSpotifySpeaker] The access token has been refreshed!

This is not good because we could have issue since different process are writing to the same file. The interval could live on the platform instead.

To Reproduce:

Expected behavior:

Logs:

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Plugin Config:

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Screenshots:

Environment:

• Plugin Version: 1.0.3
• Homebridge Version:
• Node.js Version:
• NPM Version:
• Operating System:

[poblouin]

Fixed in #12