Task/Bug: Implement label function for RedisCache tags to ignore bad character labels

[melonrush13]

Some characters allowed in Kube labels are not allowed in Azure tags.
Bad Characters:
<, >, %, , /, ?

We want to use the function in helpers/labels (from #814) to ignore the above bad characters.
We want to return the rest of the labels in the format expected by Azure for tag, and ignore the ones which are 'invalid'.

Done criteria

• Labels Function is implemented in Redis Cache

• User is able to create a RC with an improper label, and it still successfully provisions without the invalid tag.

• For eg. After this task is done, the user should be able to use either webhooks or the declarative model for K8s

User story reference

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