Fix CPD-911: Subscriptions status page shows duplicate subscriptions

[izzy64]

🗣 Description

Jira ticket: https://cset.atlassian.net/browse/CPD-910

Added a filter to the overview subscription status tab which only returns the subscription with end date from the cycle that is currently active.

💭 Motivation and context

Duplicate subscriptions were showing on the overview subscription status tab

🧪 Testing

Tested locally

✅ Pre-approval checklist

• [x] This PR has an informative and human-readable title.
• [x] Changes are limited to a single goal - eschew scope creep!
• [x] All future TODOs are captured in issues, which are referenced in code comments.
• [x] All relevant type-of-change labels have been added.
• [x] I have read the CONTRIBUTING document.
• [x] These code changes follow cisagov code standards.
• [x] All relevant repo and/or project documentation has been updated to reflect the changes in this PR.
• [ ] Tests have been added and/or modified to cover the changes in this PR.
• [x] All new and existing tests pass.

✅ Pre-merge checklist

• [ ] Revert dependencies to default branches.
• [ ] Finalize version.

✅ Post-merge checklist

• [ ] Add a tag or create a release.