Bump library/golang from 1.18 to 1.18.3

Bumps library/golang from 1.18 to 1.18.3.

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

Signed-off-by: dependabot[bot] <support@github.com>

Dockerfile

@@ -1,4 +1,4 @@
-FROM --platform=${BUILDPLATFORM} docker.io/library/golang:1.18 as builder
+FROM --platform=${BUILDPLATFORM} docker.io/library/golang:1.18.3 as builder
 
 ARG LDFLAGS