ci: remove obsolete protocol/cache-go-action #2

	on: [push, pull_request]
	name: Go Test Examples

	jobs:
	unit:
	defaults:
	run:
	working-directory: examples
	strategy:
	fail-fast: false
	matrix:
	os: [ "ubuntu", "windows", "macos" ]
	go: [ "1.19.x", "1.20.x" ]
	env:
	COVERAGES: ""
	runs-on: ${{ format('{0}-latest', matrix.os) }}
	name: ${{ matrix.os }} (go ${{ matrix.go }})
	steps:
	- uses: actions/checkout@v3
	with:
	submodules: recursive
	- uses: actions/setup-go@v3
	with:
	go-version: ${{ matrix.go }}
	- name: Go information
	run: \|
	go version
	go env
	- name: Use msys2 on windows
	if: ${{ matrix.os == 'windows' }}
	shell: bash
	# The executable for msys2 is also called bash.cmd
	# https://github.com/actions/virtual-environments/blob/main/images/win/Windows2019-Readme.md#shells
	# If we prepend its location to the PATH
	# subsequent 'shell: bash' steps will use msys2 instead of gitbash
	run: echo "C:/msys64/usr/bin" >> $GITHUB_PATH
	- name: Run tests
	uses: protocol/multiple-go-modules@v1.2
	with:
	run: go test -shuffle=on ./...
	- name: Run tests (32 bit)
	if: ${{ matrix.os != 'macos' }} # can't run 32 bit tests on OSX.
	uses: protocol/multiple-go-modules@v1.2
	env:
	GOARCH: 386
	with:
	run: \|
	export "PATH=${{ env.PATH_386 }}:$PATH"
	go test -shuffle=on ./...
	- name: Run tests with race detector
	if: ${{ matrix.os == 'ubuntu' }} # speed things up. Windows and OSX VMs are slow
	uses: protocol/multiple-go-modules@v1.2
	with:
	run: go test -race ./...

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