Bump K8s in Github workflows to 1.33.1

[ymesika]

Few follow-up bumps to #10899 Part of https://github.com/solo-io/solo-projects/issues/8102

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Issues linked to changelog: https://github.com/solo-io/solo-projects/issues/8102

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[ymesika]

@sheidkamp The only reason I added support for both is that the older LTS conformance tests seem to have their own min/max versions. We can have their own env files but not sure if it's the preferred way.

[sheidkamp]

@sheidkamp The only reason I added support for both is that the older LTS conformance tests seem to have their own min/max versions. We can have their own env files but not sure if it's the preferred way.

We don't need to worry about LTS branches - they will have their own version of the action. Can we do 2 things to make this consistent with other composite actions:

• Move the dotenv action to caller
• Pass everything as inputs and only rely on inputs with no to the matrix variables?