[SRVKS-1120] Use webhook context for secret data keys

[skonto]

Fixes JIRA #SRVKS-1120

Proposed Changes

• Similar to the old PR here: https://github.com/openshift-knative/serverless-operator/pull/2148

[ReToCode]

/override "Lint"

[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ReToCode, skonto

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[openshift-ci[bot]]

@ReToCode: Overrode contexts on behalf of ReToCode: Lint

In response to [this](https://github.com/openshift-knative/serverless-operator/pull/2596#issuecomment-2036222410): >/override "Lint" Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes/test-infra](https://github.com/kubernetes/test-infra/issues/new?title=Prow%20issue:) repository.

[skonto]

@ReToCode in order to remove that env var I have opened an upstream PR here: https://github.com/knative/pkg/pull/3006.

[ReToCode]

/unhold