chore(dependabot): group dependency updates into single PRs per ecosystem and add github ci action

Signed-off-by: Marc Schäfer <git@marcschaeferger.de>

.github/dependabot.yml

@@ -1,6 +1,22 @@
 version: 2
+
 updates:
   - package-ecosystem: "gomod"
     directory: "/"
     schedule:
       interval: "daily"
+    open-pull-requests-limit: 1
+    groups:
+      go-dependencies:
+        patterns:
+          - "*"
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    open-pull-requests-limit: 1
+    groups:
+      github-actions-dependencies:
+        patterns:
+          - "*"

.github/workflows/ci.yml

@@ -0,0 +1,91 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  GOLANGCI_LINT_VERSION: "v2.12.2"
+  YAEGI_VERSION: "v0.16.1"
+  GOPATH: ${{ github.workspace }}/go
+  REPOPATH: ${{ github.workspace }}/go/src/github.com/fosrl/badger
+
+jobs:
+  ci:
+    name: Go CI
+    runs-on: ubuntu-latest
+
+    defaults:
+      run:
+        working-directory: ${{ env.REPOPATH }}
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          path: go/src/github.com/fosrl/badger
+          persist-credentials: false
+          fetch-depth: 2
+
+      - name: Set up Go
+        uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
+        with:
+          go-version-file: go/src/github.com/fosrl/badger/.go-version
+
+      - name: Show Go version
+        run: go version
+
+      - name: Run CI checks
+        run: make ci
+
+      - name: Run golangci-lint
+        uses: golangci/golangci-lint-action@82606bf257cbaff209d206a39f5134f0cfbfd2ee # v9.2.1
+        continue-on-error: true
+        with:
+          version: ${{ env.GOLANGCI_LINT_VERSION }}
+          working-directory: ${{ env.REPOPATH }}
+
+      - name: Validate Traefik plugin metadata
+        run: |
+          test -f .traefik.yml
+          grep -q '^displayName:' .traefik.yml
+          grep -q '^type:' .traefik.yml
+          grep -q '^import:' .traefik.yml
+          grep -q '^testData:' .traefik.yml
+          grep -q 'github.com/fosrl/badger' .traefik.yml
+
+  yaegi:
+    name: Yaegi compatibility
+    runs-on: ubuntu-latest
+
+    defaults:
+      run:
+        working-directory: ${{ env.REPOPATH }}
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          path: go/src/github.com/fosrl/badger
+          persist-credentials: false
+          fetch-depth: 2
+
+      - name: Set up Go
+        uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
+        with:
+          go-version-file: go/src/github.com/fosrl/badger/.go-version
+
+      - name: Run Yaegi compatibility test
+        env:
+          GOPATH: ${{ env.GOPATH }}
+        run: make yaegi-test