Remove redundant else in environment::get #5

	name: Functional tests
	on:
	push:
	jobs:
	tests:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v3

	- name: Install CMake
	run: sudo apt update && sudo apt install -y cmake make

	- name: Install Python
	uses: actions/setup-python@v4
	with:
	python-version: '3.10'

	- name: Build interpreter
	run: make build

	- name: Run functional tests
	run: make test-interpreter

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