fix(deps): bump golang from 1.17.3-alpine to 1.18.1-alpine

Bumps golang from 1.17.3-alpine to 1.18.1-alpine.

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

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

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.17.3-alpine AS builder
+FROM golang:1.18.1-alpine AS builder
 
 WORKDIR /src
 COPY . .