Add Postgres 16 support #80

	name: CI
	on:
	pull_request:
	branches: [master]
	types: [opened, reopened, synchronize]
	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true
	jobs:
	ci:
	name: CI
	needs: [test, lint]
	runs-on: ubuntu-latest
	steps:
	- name: Done
	run: exit 0
	test:
	name: Tests
	strategy:
	fail-fast: false
	matrix:
	postgres: [14, 15, 16]
	runner:
	- ubuntu-22.04
	- buildjet-8vcpu-ubuntu-2204-arm
	runs-on: ${{ matrix.runner }}
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	- name: Build
	run: docker buildx build --build-arg PG_MAJOR=${{ matrix.postgres }} -t test .
	- name: Test
	run: docker run test cargo pgrx test pg${{ matrix.postgres }}
	lint:
	name: Linting (fmt + clippy)
	runs-on: ubuntu-latest
	steps:
	- name: Install rust
	uses: dtolnay/rust-toolchain@1.70.0
	with:
	components: rustfmt, clippy
	- name: Checkout
	uses: actions/checkout@v3
	- name: Format check
	uses: actions-rs/cargo@v1
	with:
	command: fmt
	args: -- --check

Provide feedback