chore/fix: switch release pipeline to goreleaser & ghcr.io (#43)

* chore: add goreleaser config + adapt Dockerfile
* chore: cleanup makefile and deprecated pipeline
* chore: go mod tidy -go=1.19
* feat: add release pipeline

---------

Signed-off-by: Matthias Riegler <me@xvzf.tech>

.github/workflows/go-releaser.yml

@@ -0,0 +1,52 @@
+name: goreleaser
+
+on:
+  push:
+    tags:
+      - "*"
+
+permissions:
+  contents: write
+  packages: write
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: 1.19
+
+      # Get values for cache paths to be used in later steps
+      - id: go-cache-paths
+        run: |
+          echo "::set-output name=go-build::$(go env GOCACHE)"
+          echo "::set-output name=go-mod::$(go env GOMODCACHE)"
+
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      # Cache go build cache, used to speedup go test
+      - name: Go Build Cache
+        uses: actions/cache@v2
+        with:
+          path: ${{ steps.go-cache-paths.outputs.go-build }}
+          key: ${{ runner.os }}-go-build-${{ hashFiles('**/go.sum') }}
+            #
+      # Cache go mod cache, used to speedup builds
+      - name: Go Mod Cache
+        uses: actions/cache@v2
+        with:
+          path: ${{ steps.go-cache-paths.outputs.go-mod }}
+          key: ${{ runner.os }}-go-mod-${{ hashFiles('**/go.sum') }}
+      # Run goreleaser; this one creates the GH release and pushes the images
+      - name: Run GoReleaser
+        id: goreleaser-id
+        uses: goreleaser/goreleaser-action@v2
+        with:
+          distribution: goreleaser
+          version: latest
+          args: release --rm-dist
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}