Merge pull request #11269 from chandankumar4/release-v1.8.4

🚀 Release v1.8.4

CHANGELOG/v1.8.4.md

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+## 👌 Kubernetes version support
+
+- Management Cluster: v1.27.x -> v1.31.x
+- Workload Cluster: v1.25.x -> v1.31.x
+
+[More information about version support can be found here](https://cluster-api.sigs.k8s.io/reference/versions.html)
+
+## Changes since v1.8.3
+## :chart_with_upwards_trend: Overview
+- 15 new commits merged
+- 2 bugs fixed 🐛
+
+## :bug: Bug Fixes
+- CI: Hack: fix the shell used when running pr-verify (#11170)
+- ClusterClass: Fix nil pointer for empty workers in webhook (#11198)
+
+## :seedling: Others
+- CI: Pr-verify: use env var for passing the PR title (#11230)
+- CI: Replace kubebuilder-release-tools with new workflow (#11167)
+- CI: Switch to using ECR mirror for trivy DB repo in weekly security scan (#11261)
+- ClusterCacheTracker: Add cacheSyncPeriod option to ClusterCacheTracker (#11249)
+- clusterctl: Add vultr infrastructure provider (#11217)
+- clusterctl: Bump cert manager to v1.16.0 (#11264)
+- clusterctl: Update RKE2 provider URL (#11225)
+- e2e: Test/e2e: decrease concurrency (#11222)
+- Logging: Reduce verbosity of logs when calling Runtime Extensions (#11200)
+- Machine: Prevent error spamming for NodeOutdatedTaint if objects are not found (#11199)
+- Testing: Test/framework: allow users to modify cache.Options (#11203)
+- Testing: Test/framework: GetCAPIResources should warn on rbac issues (#11206)
+
+:book: Additionally, there has been 1 contribution to our documentation and book. (#11177) 
+
+## Dependencies
+
+### Added
+_Nothing has changed._
+
+### Changed
+_Nothing has changed._
+
+### Removed
+_Nothing has changed._
+
+_Thanks to all our contributors!_ 😊