Update docker.elastic.co/wolfi/chainguard-base:latest Docker digest to 15a4191 (8.x) (#212961)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.elastic.co/wolfi/chainguard-base | digest | `6387bd4` ->
`15a4191` |

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src/dev/build/tasks/os_packages/docker_generator/run.ts

@@ -51,7 +51,7 @@ export async function runDockerGenerator(
    */
   if (flags.baseImage === 'wolfi')
     baseImageName =
-      'docker.elastic.co/wolfi/chainguard-base:latest@sha256:6387bd4c462007eaecaf13a423aea99c8a8452da09244c129703324aa97769c6';
+      'docker.elastic.co/wolfi/chainguard-base:latest@sha256:15a4191ff8ec8305dcba449365e8a1586c9cda8e016ae838d960b9009c6a5cac';
 
   let imageFlavor = '';
   if (flags.baseImage === 'ubi') imageFlavor += `-ubi`;