Bump distroless/base-debian12 in /examples/deployment/docker/log_sign…

…er (#3372)

Bumps distroless/base-debian12 from `2102ce1` to `5eae9ef`.

---
updated-dependencies:
- dependency-name: distroless/base-debian12
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

examples/deployment/docker/log_signer/Dockerfile

@@ -18,7 +18,7 @@ RUN go install ./cmd/trillian_log_signer
 RUN go run github.com/google/go-licenses save ./cmd/trillian_log_signer --save_path /THIRD_PARTY_NOTICES
 
 # Make a minimal image.
-FROM gcr.io/distroless/base-debian12@sha256:2102ce121ff1448316b93c5f347118a8e604f5ba7ec9dd7a5c2d8b0eac2941fe
+FROM gcr.io/distroless/base-debian12@sha256:5eae9ef0b97acf7de819f936e12b24976b2d54333a2cf329615366e16ba598cd
 
 COPY --from=build /go/bin/trillian_log_signer /
 COPY --from=build /THIRD_PARTY_NOTICES /THIRD_PARTY_NOTICES