NSOF-8035 ci: add our custom build workflow script

Build the ocoltel-contrib debian package and upload it as an artifact.

Goreleaser defaults to validate that releases are only done from tagged
versions therefore run it with --skip-validate.

.github/workflows/nsof-release.yaml

@@ -0,0 +1,52 @@
+name: Nsof release builder
+
+on:
+  workflow_dispatch:
+  push:
+    branches: [nsof-*]
+    paths:
+    - ".goreleaser.yaml"
+    - "distributions/otelcol-contrib/manifest.yaml"
+
+jobs:
+  build:
+    name: Build Debian Package
+    strategy:
+      matrix:
+        GOOS: [linux]
+        GOARCH: [amd64]
+    runs-on: ubuntu-20.04
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Setup Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: '~1.21.1'
+          check-latest: true
+
+      - name: Generate the sources
+        run: make generate-sources
+        env:
+          DISTRIBUTIONS: otelcol-contrib
+
+      - name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v4
+        with:
+          distribution: goreleaser
+          version: latest
+          args: --skip-validate --skip-sign --clean --timeout 2h
+        env:
+          GOOS: ${{ matrix.GOOS }}
+          GOARCH: ${{ matrix.GOARCH }}
+          GORELEASER_KEY: ${{ secrets.GORELEASER_KEY }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: all-artifacts
+          path: dist/*/*