Update setup-opentofu to fix issues with 1.6.x downloads (#1861) #2800

	---
	name: Backend Go Tests

	"on":
	push:
	branches: ['develop']
	pull_request:

	jobs:
	build:
	name: Build
	runs-on: ubuntu-latest

	steps:
	- name: Download Go
	uses: actions/setup-go@v5
	with:
	go-version: 1.21.1
	id: go

	- name: Check out code into the Go module directory
	uses: actions/checkout@v4

	- name: Test that the docker image still builds successfully
	run: \|
	export COMMIT_SHA=$(git rev-parse --short HEAD)
	docker build -t testingbuild:latest --build-arg COMMIT_SHA=${COMMIT_SHA} . -f Dockerfile_backend

	- name: Deps
	run: go get -v ./...
	working-directory: backend

	- name: Build
	run: go build
	working-directory: backend

	- name: Test
	run: \|
	go install github.com/gotesttools/gotestfmt/v2/cmd/gotestfmt@latest
	go test -json ./... \| gotestfmt
	env:
	GITHUB_PAT_TOKEN: ${{ secrets.TOKEN_GITHUB }}
	working-directory: backend

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