feature: github action

Dockerfile

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+FROM golang:1.20-alpine as builder
+
+WORKDIR /build
+RUN   apk add --no-cache upx
+COPY  go.mod  .
+RUN   go mod download -x
+COPY  . .
+RUN   go build -trimpath -o bin/mirror ./cmd/mirror
+RUN   upx --brute /build/bin/mirror
+
+
+FROM golang:1.20-alpine as base
+WORKDIR    /
+COPY       --from=builder /build/bin/mirror mirror
+VOLUME     /app
+WORKDIR    /app
+ENTRYPOINT ["/mirror" ]

action.yml

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+name: mirror-linter
+description: Runs the Go's mirror linter that checks string/[]byte performance busts
+author: "@butuzov"
+
+inputs:
+  with-tests:
+    required: false
+    description: Also check tests...
+    default: false
+
+runs:
+  using: docker
+  image: Dockerfile
+  args:
+    - '--with-tests'
+    - ./...
+
+branding:
+  icon: 'check-circle'
+  color: 'blue'