Migrated the `PersistentVolumeClaim` protection controller (within `kube-controller-manager`) to use [contextual logging](https://k8s.io/docs/concepts/cluster-administration/system-logs/#contextual-logging).

### Structured Logging in Kubelet

- Migrated `pod-security-admission` to use [contextual logging](https://k8s.io/docs/concepts/cluster-administration/system-logs/#contextual-logging). ([#114471](https://github.com/kubernetes/kubernetes/pull/114471), [@Namanl2001](https://github.com/Namanl2001)) [SIG Apps and Auth]

    /** The key of the configuration. e.g. true */
    String LOGGING_SEARCH_DOCS_ENABLED = "logging.search.docs.enabled";

    /** The key of the configuration. e.g. filetype,created,click_count,title,doc_id,url,score,site,filename,host,digest,boost,mimetype,favorite_count,_id,lang,last_modified,content_length,timestamp */
    String LOGGING_SEARCH_DOCS_FIELDS = "logging.search.docs.fields";

- Migrate `pkg/scheduler` to structured logging. ([#99273](https://github.com/kubernetes/kubernetes/pull/99273), [@yangjunmyfm192085](https://github.com/yangjunmyfm192085))

    * Remove metadata agent config maps in favor of command line flags.
    * Update the metadata agent's liveness probe to a new /healthz handler.
    * Logging Agent Improvements
    * Bump logging agent version to 0.2-1.5.33-1-k8s-1.
    * Appropriately set log severity for k8s_container.
    * Fix detect exceptions plugin to analyze message field instead of log field.

- Migrate `proxy/ipvs/proxier.go` logs to structured logging. ([#97796](https://github.com/kubernetes/kubernetes/pull/97796), [@JornShen](https://github.com/JornShen))
- Migrate `staging/src/k8s.io/apiserver/pkg/registry` logs to structured logging. ([#98287](https://github.com/kubernetes/kubernetes/pull/98287), [@lala123912](https://github.com/lala123912))

- Migrated the `volumebinding scheduler plugins` to use [contextual logging](https://k8s.io/docs/concepts/cluster-administration/system-logs/#contextual-logging). ([#116803](https://github.com/kubernetes/kubernetes/pull/116803),...

    * Remove metadata agent config maps in favor of command line flags.
    * Update the metadata agent's liveness probe to a new /healthz handler.
    * Logging Agent Improvements
    * Bump logging agent version to 0.2-1.5.33-1-k8s-1.
    * Appropriately set log severity for k8s_container.
    * Fix detect exceptions plugin to analyze message field instead of log field.

* Upgrade Stackdriver Logging Agent addon image to 0.6-1.6.0-1 to use Fluentd v1.2. This provides nanoseconds timestamp granularity for logs. ([#70954](https://github.com/kubernetes/kubernetes/pull/70954), [@qingling128](https://github.com/qingling128))