Add releaser

.github/workflows/release.yaml

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+name: goreleaser
+
+on:
+  push:
+    tags:
+      - "v[0-9]+.[0-9]+.[0-9]+"
+
+jobs:
+  goreleaser:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 1
+      - name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.15
+      - name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v2
+        with:
+          version: latest
+          args: release --rm-dist
+        env:
+          GITHUB_TOKEN: ${{ secrets.ACCESS_TOKEN }}

.goreleaser.yaml

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+project_name: germanium
+
+env:
+  - GO111MODULE=on
+
+before:
+  hooks:
+    - go mod tidy
+
+builds:
+  - main: .
+    binary: germanium
+    ldflags: -s -w -X main.version={{.Version}} -X main.commit={{.ShortCommit}} -X main.date={{.Date}}
+
+archives:
+  - replacements:
+      darwin: darwin
+      linux: linux
+      windows: windows
+      amd64: x86_64
+    files:
+      - LICENSE
+      - CREDITS
+
+release:
+  prerelease: auto