Build: Add dependency and security automation (#448)

.github/dependabot.yml

@@ -0,0 +1,37 @@
+version: 2
+updates:
+  - package-ecosystem: "pip"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "09:00"
+      timezone: "Etc/UTC"
+    labels:
+      - "build"
+      - "dependencies"
+    open-pull-requests-limit: 10
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "09:00"
+      timezone: "Etc/UTC"
+    labels:
+      - "build"
+      - "dependencies"
+    open-pull-requests-limit: 5
+
+  - package-ecosystem: "docker"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "09:00"
+      timezone: "Etc/UTC"
+    labels:
+      - "build"
+      - "dependencies"
+    open-pull-requests-limit: 5

.github/workflows/codeql.yml

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+name: CodeQL
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+  schedule:
+    - cron: "32 4 * * 1"
+  workflow_dispatch:
+
+permissions:
+  actions: read
+  contents: read
+  security-events: write
+
+concurrency:
+  group: codeql-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  analyze:
+    name: Analyze Python
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with:
+          languages: python
+
+      - name: Perform CodeQL analysis
+        uses: github/codeql-action/analyze@v3
+        with:
+          category: "/language:python"

.github/workflows/scorecard.yml

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+name: OpenSSF Scorecard
+
+on:
+  branch_protection_rule:
+  schedule:
+    - cron: "47 4 * * 1"
+  push:
+    branches: ["main"]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  id-token: write
+  security-events: write
+
+concurrency:
+  group: scorecard-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  scorecard:
+    name: Scorecard
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+
+      - name: Run Scorecard
+        uses: ossf/scorecard-action@v2.4.0
+        with:
+          results_file: scorecard.sarif
+          results_format: sarif
+          publish_results: true
+
+      - name: Upload Scorecard SARIF
+        uses: github/codeql-action/upload-sarif@v3
+        with:
+          sarif_file: scorecard.sarif