ci: scan pull requests from forks with CodeQL advanced setup

.github/workflows/codeql.yml

@@ -0,0 +1,75 @@
+#===============================================================================
+# Copyright contributors to the oneDAL project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#===============================================================================
+
+# CodeQL advanced setup. It replaces the repository's default setup, which
+# never analyses pull requests from forks -- and most pull requests here come
+# from forks -- so findings only surfaced after merge. The languages, query
+# suite and categories match what default setup used, so existing alerts keep
+# their history.
+#
+# Default setup blocks uploads from this workflow while it is enabled. Switch
+# it off (Settings > Code security > CodeQL analysis > Switch to advanced) when
+# this file lands.
+
+name: CodeQL
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+  schedule:
+    - cron: '17 4 * * 1'
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+
+jobs:
+  analyze:
+    name: Analyze (${{ matrix.language }})
+    runs-on: ubuntu-24.04
+    timeout-minutes: 30
+    permissions:
+      contents: read
+      # Upload results to code scanning. Pull requests from forks get a
+      # read-only token, and code scanning accepts their results anyway.
+      security-events: write
+    strategy:
+      fail-fast: false
+      matrix:
+        language:
+          - actions
+          - python
+    steps:
+      - name: Checkout
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.2
+        with:
+          languages: ${{ matrix.language }}
+          build-mode: none
+      - name: Perform CodeQL analysis
+        uses: github/codeql-action/analyze@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.2
+        with:
+          category: /language:${{ matrix.language }}