build(deps): bump wolfi/chainguard-base-fips (#21240)

Bumps the docker group in /packaging/docker with 1 update: [wolfi/chainguard-base-fips](https://github.com/chainguard-images/images-private).


Updates `wolfi/chainguard-base-fips` from `2851c5c` to `278de96`
- [Commits](https://github.com/chainguard-images/images-private/commits)

---
updated-dependencies:
- dependency-name: wolfi/chainguard-base-fips
  dependency-version: latest
  dependency-type: direct:production
  dependency-group: docker
...

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Author: dependabot[bot]

packaging/docker/Dockerfile.fips

@@ -22,7 +22,7 @@ RUN sed -i 's/localhost:9200/elasticsearch:9200/' apm-server.yml
 # Build stage 1
 # Copy prepared files from the previous stage and complete the image.
 ################################################################################
-FROM docker.elastic.co/wolfi/chainguard-base-fips:latest@sha256:2851c5c3701544b459485b58991fc1ae85bc9fa64f1aabd386deb4a72e3f0a0d
+FROM docker.elastic.co/wolfi/chainguard-base-fips:latest@sha256:278de9601862fec07772cc560eb77402e2a36edbbe5de64940ed354507aae9ec
 ARG TARGETARCH
 ARG BUILD_DATE
 ARG VERSION