.github/workflows: remove nightly build, since it isnt used, while wastes compute resources (CPU and storage space)

.github/workflows/nightly-build.yml

@@ -1,48 +0,0 @@
-name: nightly-build
-on:
-  schedule:
-    # Daily at 2:48am
-    - cron: '48 2 * * *'
-
-permissions:
-  contents: read
-
-jobs:
-  build:
-    name: Build
-    runs-on: ubuntu-latest
-    steps:
-      - name: Login to Docker Hub
-        uses: docker/login-action@v2
-        with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-      - name: Setup Go
-        uses: actions/setup-go@main
-        with:
-          go-version: 1.21.1
-        id: go
-
-      - name: Setup docker scan
-        run: |
-          mkdir -p ~/.docker/cli-plugins && \
-          curl https://github.com/docker/scan-cli-plugin/releases/latest/download/docker-scan_linux_amd64 -L -s -S -o ~/.docker/cli-plugins/docker-scan &&\
-          chmod +x ~/.docker/cli-plugins/docker-scan
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
-      
-      - name: Code checkout
-        uses: actions/checkout@master
-
-      - uses: actions/cache@v3
-        with:
-          path: gocache-for-docker
-          key: gocache-docker-${{ runner.os }}-${{ steps.go.outputs.go-version }}-${{ hashFiles('go.mod') }}
-
-      - name: build & publish
-        run: |
-          docker scan --severity=medium --login --token "$SNYK_TOKEN" --accept-license
-          LATEST_TAG=nightly PKG_TAG=nightly make publish
-        env: 
-          SNYK_TOKEN: ${{ secrets.SNYK_AUTH_TOKEN }}