chore(csv): bump csv min k8s version to 1.25 (backport #910)

[mergify]

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Fixes: cryostatio/cryostatio.github.io#194

Description of the change:

Bumped min k8s version in CSV to 1.25.0

Motivation for the change:

See cryostatio/cryostatio.github.io#194 (comment). Might be a little odd if anyone already installs cryostat-operator with 1.21-1.24 k8s.

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This is an automatic backport of pull request #910 done by Mergify.

[mergify]

Cherry-pick of f84caf0 has failed:

On branch mergify/bp/cryostat-v3.0/pr-910
Your branch is up to date with 'origin/cryostat-v3.0'.

You are currently cherry-picking commit f84caf0.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   README.md
	modified:   config/manifests/bases/cryostat-operator.clusterserviceversion.yaml

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   bundle/manifests/cryostat-operator.clusterserviceversion.yaml

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[andrewazores]

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