chore(deps): bump golang from 1.18.3-alpine to 1.18.4-alpine (projectdiscovery#577)

Bumps golang from 1.18.3-alpine to 1.18.4-alpine.

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Dockerfile

@@ -1,5 +1,5 @@
 # Build
-FROM golang:1.18.3-alpine AS build-env
+FROM golang:1.18.4-alpine AS build-env
 RUN go install -v github.com/projectdiscovery/subfinder/v2/cmd/subfinder@latest
 
 # Release