🌱 schedule dependabot on certain day, and add ok-to-test automatically

[tuminoid]

CAPM3 schedule:

• GH actions: tuesday
• Gomod: wednesday

Automatically add labels:

• ok-to-test

We have dynamic Prow scheduling now and proper requests, we should not suffer from load failures in very basic tests anymore.

[tuminoid]

/cc @kashifest /hold

I want Kashif's opinion on this and other scheduling PRs, hence hold.

[kashifest]

/approve

[metal3-io-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: kashifest

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Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/metal3-io/cluster-api-provider-metal3/blob/main/OWNERS)~~ [kashifest] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

[tuminoid]

/unhold /override metal3-centos-e2e-integration-test-main metal3-ubuntu-e2e-integration-test-main

[metal3-io-bot]

@tuminoid: Overrode contexts on behalf of tuminoid: metal3-centos-e2e-integration-test-main, metal3-ubuntu-e2e-integration-test-main

In response to [this](https://github.com/metal3-io/cluster-api-provider-metal3/pull/1821#issuecomment-2202067661): >/unhold >/override metal3-centos-e2e-integration-test-main metal3-ubuntu-e2e-integration-test-main 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.