CHANGELOG: Update directory for v1.31.100-akslts release

[m-chau]

CHANGELOG: Update directory for v1.31.100-akslts release

[aks-lts-prow]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: m-chau
Once this PR has been reviewed and has the lgtm label, please assign jeremyrickard for approval. For more information see the Kubernetes Code Review Process.

The full list of commands accepted by this bot can be found here.

Details

Needs approval from an approver in each of these files:

• CHANGELOG/OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[aks-lts-prow]

@m-chau: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-kubernetes-conformance-kind-ga-only-parallel	3730507	link	true	/test pull-kubernetes-conformance-kind-ga-only-parallel
pull-kubernetes-e2e-kind-ipv6	3730507	link	true	/test pull-kubernetes-e2e-kind-ipv6
pull-kubernetes-e2e-kind	3730507	link	true	/test pull-kubernetes-e2e-kind

Full PR test history. Your PR dashboard.

Details

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.