chore(deps): update golang:1.26 docker digest to 595c784 (#90)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| golang | stage | digest | `c42e4d7` → `595c784` |

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otlp-bench/bench-setup/Dockerfile.custom

@@ -3,7 +3,7 @@ FROM alpine:3.23@sha256:25109184c71bdad752c8312a8623239686a9a2071e8825f20acb8f21
 RUN apk --update add ca-certificates
 
 
-FROM golang:1.26@sha256:c42e4d75186af6a44eb4159dcfac758ef1c05a7011a0052fe8a8df016d8e8fb9 AS build-stage
+FROM golang:1.26@sha256:595c7847cff97c9a9e76f015083c481d26078f961c9c8dca3923132f51fe12f1 AS build-stage
 
 WORKDIR /build