perf(audit): adaptive timestamp floor for S3 audit-log export (#9752)

* perf(audit): adaptive timestamp floor for S3 audit-log export (ee)

EE change in windmill-ee-private (src/ee.rs); this OSS commit carries the regenerated
sqlx cache for the new oldest-in-flight query and bumps ee-repo-ref.txt to the EE branch.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* chore: update ee-repo-ref to ed89574be9117cda5e2d7d9de02cb5db066e93e3

This commit updates the EE repository reference after PR #628 was merged in windmill-ee-private.

Previous ee-repo-ref: 8a7f645c0a194a284fe19dd20dbe79dd0733dfdb

New ee-repo-ref: ed89574be9117cda5e2d7d9de02cb5db066e93e3

Automated by sync-ee-ref workflow.

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-authored-by: windmill-internal-app[bot] <windmill-internal-app[bot]@users.noreply.github.com>

backend/.sqlx/query-5d84f1ede2fbe09923a36d80d7c01699bf9968a02675f9f598c97a19c6df089b.json

@@ -0,0 +1,20 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "SELECT CASE WHEN (current_setting('is_superuser') = 'on'\n                                  OR pg_has_role(current_user, 'pg_read_all_stats', 'USAGE'))\n                             AND NOT EXISTS (SELECT 1 FROM pg_prepared_xacts)\n                        THEN (SELECT min(xact_start) FROM pg_stat_activity WHERE xact_start IS NOT NULL)\n                        ELSE NULL END AS \"x\"",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "x",
+        "type_info": "Timestamptz"
+      }
+    ],
+    "parameters": {
+      "Left": []
+    },
+    "nullable": [
+      null
+    ]
+  },
+  "hash": "5d84f1ede2fbe09923a36d80d7c01699bf9968a02675f9f598c97a19c6df089b"
+}

backend/ee-repo-ref.txt

@@ -1 +1 @@
-6d3301507db50818f1683dac3941d3e0cf1152a7
+ed89574be9117cda5e2d7d9de02cb5db066e93e3