fix: update main.go to follow golang dir standards structure

Dockerfile

@@ -13,7 +13,7 @@ COPY go.sum go.sum
 RUN go mod download
 
 # Copy the go source
-COPY main.go main.go
+COPY cmd/main.go cmd/main.go
 COPY version/ version/
 COPY apis/ apis/
 COPY controllers/ controllers/
@@ -27,7 +27,7 @@ COPY pkg/ pkg/
 RUN CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH} go build -a -tags \
     "exclude_graphdriver_devicemapper exclude_graphdriver_btrfs containers_image_openpgp" \
     --ldflags="-X 'github.com/crowdstrike/falcon-operator/version.Version=${VERSION}'" \
-    -o manager main.go
+    -o manager cmd/main.go
 
 # Use distroless as minimal base image to package the manager binary
 # Refer to https://github.com/GoogleContainerTools/distroless for more details

Makefile

@@ -126,11 +126,11 @@ build: manifests generate fmt vet ## Build manager binary.
 	go build -a \
 		-tags "exclude_graphdriver_devicemapper exclude_graphdriver_btrfs containers_image_openpgp" \
 		--ldflags="-X 'github.com/crowdstrike/falcon-operator/version.Version=$(VERSION)'" \
-		-o bin/manager main.go
+		-o bin/manager cmd/main.go
 
 .PHONY: run
 run: manifests generate fmt vet ## Run a controller from your host.
-	go run ./main.go
+	go run ./cmd/main.go
 
 # If you wish built the manager image targeting other platforms you can use the --platform flag.
 # (i.e. docker build --platform linux/arm64 ). However, you must enable docker buildKit for it.