feat(adguard-exporter): add AdGuard Home Prometheus exporter image

.gitea/workflows/adguard-exporter.yaml

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+name: Build and push adguard-exporter image
+run-name: ${{ gitea.actor }} is building and pushing adguard-exporter image
+on:
+  push:
+    branches:
+      - main
+      - 'feat/**'
+    paths:
+      - 'adguard-exporter/**'
+      - '.gitea/workflows/adguard-exporter.yaml'
+    tags:
+      - 'v*'
+  workflow_dispatch:
+
+env:
+  RESULT_IMAGE_NAME: tools/adguard-exporter
+
+jobs:
+  build-and-push-image:
+    runs-on: docker
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v5
+
+      - name: Log in to registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ vars.PRIVATE_REGISTRY_DOMAIN }}
+          username: ${{ vars.PRIVATE_REGISTRY_USER }}
+          password: ${{ secrets.PRIVATE_REGISTRY_PASSWORD }}
+
+      - name: Install private CA certificate
+        run: |
+          echo "${{ vars.PRIVATE_REGISTRY_CA_CERT }}" | sudo tee /usr/local/share/ca-certificates/private-ca.crt > /dev/null
+          sudo update-ca-certificates
+
+      - name: Compute image tags
+        id: tags
+        run: |
+          BASE="${{ vars.PRIVATE_REGISTRY_DOMAIN }}/${{ env.RESULT_IMAGE_NAME }}"
+          {
+            echo "value<<EOF"
+            echo "${BASE}:${{ gitea.sha }}"
+            if [ "${{ gitea.ref_name }}" = "main" ]; then
+              echo "${BASE}:latest"
+            fi
+            if [[ "${{ gitea.ref }}" == refs/tags/v* ]]; then
+              echo "${BASE}:${{ gitea.ref_name }}"
+            fi
+            echo "EOF"
+          } >> "$GITHUB_OUTPUT"
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+        with:
+          config-inline: |
+            [registry."harbor.lan"]
+              ca = ["/usr/local/share/ca-certificates/private-ca.crt"]
+
+      - name: Build and push image
+        uses: docker/build-push-action@v6
+        with:
+          context: adguard-exporter
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ steps.tags.outputs.value }}

adguard-exporter

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+Subproject commit 1113358cac51354eaf1280d940a50e344a4e045b