Update release notes for May 31 release (#901)

[comment]: # (Note that your PR title should follow the conventional
commit format: https://conventionalcommits.org/en/v1.0.0/#summary)
# PR Description
Update release notes for May 31 release
[comment]: # (The below checklist is for PRs adding new features. If a
box is not checked, add a reason why it's not needed.)
# New Feature Checklist

- [ ] List telemetry added about the feature.
- [ ] Link to the one-pager about the feature.
- [ ] List any tasks necessary for release (3P docs, AKS RP chart
changes, etc.) after merging the PR.
- [ ] Attach results of scale and perf testing.

[comment]: # (The below checklist is for code changes. Not all boxes
necessarily need to be checked. Build, doc, and template changes do not
need to fill out the checklist.)
# Tests Checklist

- [ ] Have end-to-end Ginkgo tests been run on your cluster and passed?
To bootstrap your cluster to run the tests, follow [these
instructions](/otelcollector/test/README.md#bootstrap-a-dev-cluster-to-run-ginkgo-tests).
  - Labels used when running the tests on your cluster:
    - [ ] `operator`
    - [ ] `windows`
    - [ ] `arm64`
    - [ ] `arc-extension`
    - [ ] `fips`
- [ ] Have new tests been added? For features, have tests been added for
this feature? For fixes, is there a test that could have caught this
issue and could validate that the fix works?
  - [ ] Is a new scrape job needed?
- [ ] The scrape job was added to the folder
[test-cluster-yamls](/otelcollector/test/test-cluster-yamls/) in the
correct configmap or as a CR.
  - [ ] Was a new test label added?
- [ ] A string constant for the label was added to
[constants.go](/otelcollector/test/utils/constants.go).
- [ ] The label and description was added to the [test
README](/otelcollector/test/README.md).
- [ ] The label was added to this [PR
checklist](/.github/pull_request_template).
- [ ] The label was added as needed to
[testkube-test-crs.yaml](/otelcollector/test/testkube/testkube-test-crs.yaml).
  - [ ] Are additional API server permissions needed for the new tests?
- [ ] These permissions have been added to
[api-server-permissions.yaml](/otelcollector/test/testkube/api-server-permissions.yaml).
  - [ ] Was a new test suite (a new folder under `/tests`) added?
- [ ] The new test suite is included in
[testkube-test-crs.yaml](/otelcollector/test/testkube/testkube-test-crs.yaml).

RELEASENOTES.md

@@ -1,10 +1,10 @@
 # Azure Monitor Metrics for AKS clusters
 
 ## Release 05-29-2024
-* Linux image - `mcr.microsoft.com/azuremonitor/containerinsights/ciprod/prometheus-collector/images:6.8.13-main-05-<tbd>`
-* Windows image - `mcr.microsoft.com/azuremonitor/containerinsights/ciprod/prometheus-collector/images:6.8.13-<tbd>-win`
-* TA image - `mcr.microsoft.com/azuremonitor/containerinsights/ciprod/prometheus-collector/images:6.8.13-main-<tbd>-targetallocator`
-* cfg sidecar image - `mcr.microsoft.com/azuremonitor/containerinsights/ciprod/prometheus-collector/images:6.8.13-main-<tbd>-cfg`
+* Linux image - `mcr.microsoft.com/azuremonitor/containerinsights/ciprod/prometheus-collector/images:6.8.13-main-05-29-2024-3e72c0e4`
+* Windows image - `mcr.microsoft.com/azuremonitor/containerinsights/ciprod/prometheus-collector/images:6.8.13-main-05-29-2024-3e72c0e4-win`
+* TA image - `mcr.microsoft.com/azuremonitor/containerinsights/ciprod/prometheus-collector/images:6.8.13-main-05-29-2024-3e72c0e4-targetallocator`
+* cfg sidecar image - `mcr.microsoft.com/azuremonitor/containerinsights/ciprod/prometheus-collector/images:6.8.13-main-05-29-2024-3e72c0e4-cfg`
 * Change log -
   * fix: update kube-state-metrics from: `v2.9.2` to: `v2.12.0` - (#887) https://github.com/Azure/prometheus-collector/pull/887
   * fix: switch to Managed Identity for ARC release - (#895) https://github.com/Azure/prometheus-collector/pull/895