Add security scanners: Trivy, OSV-Scanner, Maven dependency submission

- Trivy filesystem scan for dependency CVEs
- OSV-Scanner v2 for push/schedule and PR diff scanning
- Maven dependency submission to resolve BOM-inherited versions
- Devcontainer Dockerfile for image builds

Co-authored-by: Ona <no-reply@ona.com>

Author: meysholdt

.devcontainer/Dockerfile

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+FROM mcr.microsoft.com/devcontainers/base:ubuntu-24.04
+
+# use this Dockerfile to install additional tools you might need, e.g.
+# RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+#     && apt-get -y install --no-install-recommends <your-package-list-here>

.github/workflows/dependency-submission.yml

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+name: Maven Dependency Submission
+
+on:
+  push:
+    branches: [ "main" ]
+    paths:
+      - 'pom.xml'
+      - '.mvn/**'
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+jobs:
+  submit:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'adopt'
+
+      - name: Submit dependency graph
+        uses: advanced-security/maven-dependency-submission-action@v4

.github/workflows/osv-scanner.yml

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+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+# A sample workflow which sets up periodic OSV-Scanner scanning for vulnerabilities,
+# in addition to a PR check which fails if new vulnerabilities are introduced.
+#
+# For more examples and options, including how to ignore specific vulnerabilities,
+# see https://google.github.io/osv-scanner/github-action/
+
+name: OSV-Scanner
+
+on:
+  pull_request:
+    branches: [ "main" ]
+  merge_group:
+    branches: [ "main" ]
+  schedule:
+    - cron: '39 0 * * 4'
+  push:
+    branches: [ "main" ]
+
+permissions:
+  security-events: write
+  contents: read
+  actions: read
+
+jobs:
+  scan-scheduled:
+    if: ${{ github.event_name == 'push' || github.event_name == 'schedule' }}
+    uses: "google/osv-scanner-action/.github/workflows/osv-scanner-reusable.yml@98b584ee2ed2da3935ccce10e06739d54cdcd20b" # v2.0.0
+    with:
+      fail-on-vuln: false
+      scan-args: |-
+        -r
+        ./
+  scan-pr:
+    if: ${{ github.event_name == 'pull_request' || github.event_name == 'merge_group' }}
+    uses: "google/osv-scanner-action/.github/workflows/osv-scanner-reusable-pr.yml@98b584ee2ed2da3935ccce10e06739d54cdcd20b" # v2.0.0
+    with:
+      scan-args: |-
+        -r
+        ./

.github/workflows/trivy.yml

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+name: trivy
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+  schedule:
+    - cron: '29 6 * * 2'
+
+permissions:
+  contents: read
+
+jobs:
+  fs-scan:
+    permissions:
+      contents: read
+      security-events: write
+      actions: read
+    name: Filesystem Scan
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Run Trivy filesystem scanner
+        uses: aquasecurity/trivy-action@0.35.0
+        with:
+          scan-type: 'fs'
+          scan-ref: '.'
+          format: 'sarif'
+          output: 'trivy-fs-results.sarif'
+          severity: 'CRITICAL,HIGH'
+
+      - name: Upload filesystem scan results to GitHub Security tab
+        uses: github/codeql-action/upload-sarif@v3
+        if: always()
+        with:
+          sarif_file: 'trivy-fs-results.sarif'
+          category: 'trivy-fs'