feat: update workspace deadline when template policy changes (#8964)

coderd/database/queries/workspacebuilds.sql

@@ -144,3 +144,27 @@ SET
 WHERE
 	id = $1;
 
+-- name: GetActiveWorkspaceBuildsByTemplateID :many
+SELECT wb.*
+FROM (
+    SELECT
+        workspace_id, MAX(build_number) as max_build_number
+    FROM
+		workspace_build_with_user AS workspace_builds
+    WHERE
+        workspace_id IN (
+			SELECT
+				id
+			FROM
+				workspaces
+			WHERE
+				template_id = $1
+		)
+    GROUP BY
+        workspace_id
+) m
+JOIN
+	workspace_build_with_user AS wb
+	ON m.workspace_id = wb.workspace_id AND m.max_build_number = wb.build_number
+WHERE
+	wb.transition = 'start'::workspace_transition;