fix: Makefile docker build command

Note that when we run `make docker-build` it is not working.
It fails with the error:

Error:
) $ make build docker-build
/Users/camiladeomacedo/go/bin/controller-gen-v0.16.1 rbac:roleName=manager-role crd webhook paths="./..." output:crd:artifacts:config=config/base/crd/bases output:rbac:artifacts:config=config/base/rbac
/Users/camiladeomacedo/go/bin/controller-gen-v0.16.1 object:headerFile="hack/boilerplate.go.txt" paths="./..."
go fmt ./...
go vet -tags 'containers_image_openpgp' ./...

This change ensures that the docker build will build the binary according to the local architecture and not for a specific ARCH. It simplifies the Makefile and logic to build.

Author: camilamacedo86

.github/workflows/install.yaml

@@ -48,4 +48,4 @@ jobs:
             kubectl describe pod $pod -n olmv1-system
             echo "Logs for pod $pod:"
             kubectl logs $pod -n olmv1-system --all-containers=true
-          done
+          done

Makefile

@@ -264,24 +264,12 @@ $(BINARIES):
 .PHONY: build-deps
 build-deps: manifests generate fmt vet
 
-.PHONY: build go-build-local
-build: build-deps go-build-local #HELP Build manager binary for current GOOS and GOARCH. Default target.
-go-build-local: BUILDBIN := bin
-go-build-local: $(BINARIES)
-
-.PHONY: build-linux go-build-linux
-build-linux: build-deps go-build-linux #EXHELP Build manager binary for GOOS=linux and local GOARCH.
-go-build-linux: BUILDBIN := bin/linux
-go-build-linux: export GOOS=linux
-go-build-linux: export GOARCH=amd64
-go-build-linux: $(BINARIES)
-
 .PHONY: run
 run: docker-build kind-cluster kind-load kind-deploy #HELP Build the operator-controller then deploy it into a new kind cluster.
 
 .PHONY: docker-build
-docker-build: build-linux #EXHELP Build docker image for operator-controller with GOOS=linux and local GOARCH.
-	$(CONTAINER_RUNTIME) build -t $(IMG) -f Dockerfile ./bin/linux
+docker-build: build-deps #EXHELP Build the operator-controller manager with local GOOS/GOARCH
+	$(CONTAINER_RUNTIME) build -t $(IMG) -f Dockerfile ./bin/
 
 #SECTION Release
 ifeq ($(origin ENABLE_RELEASE_PIPELINE), undefined)