Added Erlang 26 to CI/CD. #58

	name: ci/cd

	on:
	workflow_dispatch:
	push:
	branches: [ main, 'release/*' ]
	pull_request:
	branches: [ main, 'release/*' ]
	# Build once a month, just to be sure things are still working
	schedule:
	- cron: "20 4 18 * *"

	jobs:

	core-builds:
	name: Erlang ${{ matrix.otp_version }} build
	runs-on: ubuntu-latest

	strategy:
	matrix:
	otp_version: ['24.3', '25.3', '26.0']

	steps:
	- uses: actions/checkout@v2
	- uses: erlef/setup-beam@v1
	with:
	otp-version: ${{ matrix.otp_version }}
	rebar3-version: '3.22'
	- name: Compile
	run: rebar3 compile
	- name: Xref Checks
	run: rebar3 xref
	- name: Dialyzer
	run: rebar3 dialyzer
	- name: Proper Tests
	run: rebar3 proper --regressions
	- name: Run Tests
	run: rebar3 ct -c
	- name: Run Demo
	run: rebar3 demo

	older-builds:
	name: Old Erlang ${{ matrix.otp_version }} build
	runs-on: ubuntu-20.04

	strategy:
	matrix:
	otp_version: ['21.3', '22.3', '23.3']

	steps:
	- uses: actions/checkout@v2
	- uses: erlef/setup-beam@v1
	with:
	otp-version: ${{ matrix.otp_version }}
	rebar3-version: '3.15'
	- name: Compile
	run: rebar3 compile
	- name: Xref Checks
	run: rebar3 xref
	- name: Dialyzer
	run: rebar3 dialyzer
	- name: Proper Tests
	run: rebar3 proper --regressions
	- name: Run Tests
	run: rebar3 ct -c
	- name: Run Demo
	run: rebar3 demo

Provide feedback