`Lectures`: Improve lecture attachment validation #53973

	name: "CodeQL"

	on:
	push:
	branches: [develop, main]
	paths-ignore:
	- 'README.md'
	- 'CODE_OF_CONDUCT.md'
	- 'CONTRIBUTING.md'
	- 'LICENSE'
	- 'SECURITY.md'
	- 'docs/**'
	- '.github/**'
	- '!.github/workflows/codeql-analysis.yml'
	pull_request:
	# The branches below must be a subset of the branches above
	branches: [develop]
	paths-ignore:
	- 'README.md'
	- 'CODE_OF_CONDUCT.md'
	- 'CONTRIBUTING.md'
	- 'LICENSE'
	- 'SECURITY.md'
	- 'docs/**'
	- '.github/**'
	- '!.github/workflows/codeql-analysis.yml'
	schedule:
	- cron: '0 16 * * 0'

	# Keep in sync with build.yml and test.yml and analysis-of-endpoint-connections.yml
	env:
	CI: true
	node: 20
	java: 21


	jobs:
	analyse:
	name: Analyse
	runs-on: ubuntu-latest

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

	# Install Java 21
	- name: Setup Node.js
	uses: actions/setup-node@v4
	with:
	node-version: '${{ env.node }}'
	cache: 'npm'
	- name: Setup Java
	uses: actions/setup-java@v4
	with:
	distribution: 'temurin'
	java-version: '${{ env.java }}'
	cache: 'gradle'

	# Initializes the CodeQL tools for scanning.
	- name: Initialize CodeQL
	uses: github/codeql-action/init@v3
	# Override language selection by uncommenting this and choosing your languages
	with:
	languages: javascript, java

	# Autobuild attempts to build any compiled languages (C/C++, C#, or Java).
	- name: Autobuild
	uses: github/codeql-action/autobuild@v3

	- run: rm -rf build/resources/main/static

	- name: Perform CodeQL Analysis
	uses: github/codeql-action/analyze@v3

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