dependabot(docker): bump ethereum/client-go in /ops-bedrock (#10197)

Bumps ethereum/client-go from v1.13.14 to v1.13.15.

---
updated-dependencies:
- dependency-name: ethereum/client-go
  dependency-type: direct:production
...
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

ops-bedrock/Dockerfile.l1

-FROM ethereum/client-go:v1.13.14
+FROM ethereum/client-go:v1.13.15
 
 RUN apk add --no-cache jq bash