Update alpine Docker tag to v3.23 (#27)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| alpine | final | minor | `3.19` -> `3.23` |
| alpine | stage | minor | `3.19` -> `3.23` |

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otlp-bench/bench-setup/Dockerfile.custom

@@ -1,4 +1,4 @@
-FROM alpine:3.19 AS certs
+FROM alpine:3.23@sha256:51183f2cfa6320055da30872f211093f9ff1d3cf06f39a0bdb212314c5dc7375 AS certs
 
 RUN apk --update add ca-certificates
 
@@ -13,7 +13,7 @@ RUN --mount=type=cache,target=/root/.cache/go-build GO111MODULE=on go install go
 RUN --mount=type=cache,target=/root/.cache/go-build builder --config builder-manifest.yaml
 
 
-FROM alpine:3.19
+FROM alpine:3.23@sha256:51183f2cfa6320055da30872f211093f9ff1d3cf06f39a0bdb212314c5dc7375
 
 RUN apk --no-cache add ca-certificates util-linux