Adds a doc describing the steps needed to rotate the fulcio keys, replaces deleting the key and cert if a new ones is generated with simply removing the label
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- ~~[OWNERS](https://github.com/securesign/secure-sign-operator/blob/main/OWNERS)~~ [JasonPowr,osmman]
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Adds a doc describing the steps needed to rotate the fulcio keys, replaces deleting the key and cert if a new ones is generated with simply removing the label