chore(deps): update docker.elastic.co/wolfi/chainguard-base:latest docker digest to 55b297d

[elastic-renovate-prod[bot]]

This PR contains the following updates:

Package	Type	Update	Change
docker.elastic.co/wolfi/chainguard-base		digest	973e72c -> 55b297d
docker.elastic.co/wolfi/chainguard-base	final	digest	973e72c -> 55b297d

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