chore(deps): bump golang from 1.21.4-alpine3.18 to 1.21.5-alpine3.18

Bumps golang from 1.21.4-alpine3.18 to 1.21.5-alpine3.18.

---
updated-dependencies:
- dependency-name: golang
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Dockerfile

@@ -1,5 +1,5 @@
 # stage 1 Build blobstream binary
-FROM --platform=$BUILDPLATFORM docker.io/golang:1.21.4-alpine3.18 as builder
+FROM --platform=$BUILDPLATFORM docker.io/golang:1.21.5-alpine3.18 as builder
 
 ARG TARGETOS
 ARG TARGETARCH