Bump golang from 1.17.7-alpine to 1.18rc1-alpine

Bumps golang from 1.17.7-alpine to 1.18rc1-alpine.

---
updated-dependencies:
- dependency-name: golang
  dependency-type: direct:production
...

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

Dockerfile

@@ -21,7 +21,7 @@ RUN pnpm install -r --offline --prod
 # Do the build
 RUN pnpm build
 
-FROM golang:1.17.7-alpine AS builder
+FROM golang:1.18rc1-alpine AS builder
 
 RUN apk add --no-cache git ca-certificates && mkdir /dozzle