Update docs for Java 25 and GKE migration (#3089)

Summarize all documentation updates across the repository to align with modern GKE, Cloud SQL Proxy v2, standard EPP fee v1.0, and Postgres database environments.

Key Updates:
- Prerequisites: Bump Java requirement to Java 25.
- Architecture & Scaling: Document GKE workloads, Cloud Tasks queues, and scheduled tasks. Replace App Engine references with GKE deployment restart commands (kubectl rollout restart).
- Configuration: Update Cloud SQL Proxy instructions to v2, fix keyring verification commands, and document IAP configuration.
- Escrow (RDE/BRDA): Fix manual generation and download procedures to match the Dataflow job ID folder structure, and correct deposit encryption/verification command parameters.
- Monitoring: Correct metric names and expand the documented metrics list with caching, locking, and reserved list metrics.
- Fixes: Standardize lists formatting across markdown files, fix broken webdriver links, and resolve various typos.
- Cleanup: Remove leftover cloud scheduler configurations for the deleted wipeOutContactHistoryPii task, and update ICANN reporting documentation to reflect open-sourced DNS query coordinator.

TAG=agy
CONV=88271e71-e272-40e0-85f8-a075a423b7c2

core/src/main/java/google/registry/config/files/tasks/cloud-scheduler-tasks-production.xml

@@ -266,16 +266,6 @@
     <schedule>0 15 * * *</schedule>
   </task>
 
-  <task>
-    <url><![CDATA[/_dr/task/wipeOutContactHistoryPii]]></url>
-    <name>wipeOutContactHistoryPii</name>
-    <description>
-      This job runs weekly to wipe out PII fields of ContactHistory entities
-      that have been in the database for a certain period of time.
-    </description>
-    <schedule>0 15 * * 1</schedule>
-  </task>
-
   <task>
     <url><![CDATA[/_dr/task/bsaDownload]]></url>
     <name>bsaDownload</name>

core/src/main/java/google/registry/config/files/tasks/cloud-scheduler-tasks-sandbox.xml

@@ -155,16 +155,6 @@
     <schedule>*/1 * * * *</schedule>
   </task>
 
-  <task>
-    <url><![CDATA[/_dr/task/wipeOutContactHistoryPii]]></url>
-    <name>wipeOutContactHistoryPii</name>
-    <description>
-      This job runs weekly to wipe out PII fields of ContactHistory entities
-      that have been in the database for a certain period of time.
-    </description>
-    <schedule>0 15 * * 1</schedule>
-  </task>
-
   <task>
     <url><![CDATA[/_dr/task/bsaDownload]]></url>
     <name>bsaDownload</name>

core/src/test/java/google/registry/webdriver/README.md

@@ -12,7 +12,7 @@ for more information on using webdriver.
 2. Missing golden images
   * If you added a new test using screenshot comparison, you have to generate
     the golden image for that test in advance and copy it to
-    [goldens/](https://github.com/google/nomulus/tree/master/core/src/test/java/google/registry/webdriver/goldens)
+    [goldens/](https://github.com/google/nomulus/tree/master/core/src/test/resources/google/registry/webdriver/goldens)
     folder. There
     is an auxiliary Gradle build task to help with this, and here are some examples:
     ```shell