Update docker.elastic.co/wolfi/chainguard-base:latest Docker digest to 3f6bcf4

Author: elastic-renovate-prod[bot]

build-tools-internal/src/main/java/org/elasticsearch/gradle/internal/DockerBase.java

@@ -22,7 +22,7 @@ public enum DockerBase {
     // Chainguard based wolfi image with latest jdk
     // This is usually updated via renovatebot
     // spotless:off
-    WOLFI("docker.elastic.co/wolfi/chainguard-base:latest@sha256:15a4191ff8ec8305dcba449365e8a1586c9cda8e016ae838d960b9009c6a5cac",
+    WOLFI("docker.elastic.co/wolfi/chainguard-base:latest@sha256:3f6bcf4db22d9809c7e0d7bf02bb2c549f22e3a62d53496901340f2bbe082e2b",
         "-wolfi",
         "apk"
     ),