build(deps): Bump alpine from 3.17.3 to 3.18.0 (#1762)

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

Author: dependabot[bot]

Dockerfile

@@ -8,7 +8,7 @@ WORKDIR /tflint
 COPY . /tflint
 RUN GOOS=$TARGETOS GOARCH=$TARGETARCH make build
 
-FROM alpine:3.17.3
+FROM alpine:3.18.0
 
 LABEL maintainer=terraform-linters