build: add workflow to publish image to ghcr (#914) #7

Job	Run time
container_quality_dockerfile_lint	8s
lint	1m 13s
build_scan_container_image	10m 28s
Go Test	6m 39s
build_go_binary (amd64)	51s
build_go_binary (arm64)	57s
gosec_scan	15s
Validate YAML	23s
./tests/e2e-chainsaw/v1beta2/teardown/	5m 37s
./tests/e2e-chainsaw/v1beta2/setup/	6m 34s
./tests/e2e-chainsaw/v1beta2/hostnetwork/	10m 35s
./tests/e2e-chainsaw/v1beta2/password/	12m 41s
./tests/e2e-chainsaw/v1beta2/ha-setup/	9m 51s
./tests/e2e-chainsaw/v1beta2/ha-failover/	9m 43s
./tests/e2e-chainsaw/v1beta2/nodeport/	10m 41s
./tests/e2e-chainsaw/v1beta2/pvc-name/	6m 39s
./tests/e2e-chainsaw/v1beta2/keep-pvc/	5m 41s
./tests/e2e-chainsaw/v1beta2/acl-user/	10m 38s
./tests/e2e-chainsaw/v1beta2/scaling/	17m 27s
./tests/e2e-chainsaw/v1beta2/ignore-annots/	5m 36s
	2h 12m 37s

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