Fix bytes as fixed type if no ssz tags available #154

	name: Unit tests
	on: [pull_request]
	jobs:
	build:
	runs-on: ubuntu-latest
	name: Go test
	steps:
	- uses: actions/checkout@v2
	- name: Setup go
	uses: actions/setup-go@v1
	with:
	go-version: '1.18'
	- name: Validate spec
	run: ./scripts/ci-validate-specs.sh
	- name: Validate testcases
	run: ./scripts/ci-validate-testcases.sh
	- name: Download vendor dependencies
	run: go mod vendor
	- name: Download spec tests
	run: make get-spec-tests
	- name: Unit tests
	run: go test -v ./...

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