UnixPB: Only Install CMake on mac where not already present. #260

	---
	name: Semgrep Differential Scan
	on:
	pull_request:

	jobs:
	semgrep-diff:
	runs-on: ubuntu-latest
	container:
	image: returntocorp/semgrep

	steps:
	# Step 1: Clone application source code
	- name: Checkout code
	uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 # v4.1.2
	with:
	fetch-depth: 0

	# Step 2: Differential scan
	- name: Differential scan
	run: \|
	semgrep ci \
	--config="p/trailofbits"

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