fix(makefile): add missing flags for optimized build

Author: tae2089

Makefile

@@ -2,7 +2,7 @@ VERSION  ?= $(shell git describe --tags --always --dirty 2>/dev/null || echo dev
 COMMIT   ?= $(shell git rev-parse --short HEAD 2>/dev/null || echo unknown)
 DATE     ?= $(shell date -u +%Y-%m-%dT%H:%M:%SZ)
 PKG       = github.com/tae2089/code-context-graph/cmd/ccg
-LDFLAGS   = -X main.version=$(VERSION) -X main.commit=$(COMMIT) -X main.date=$(DATE)
+LDFLAGS   = -s -w -X main.version=$(VERSION) -X main.commit=$(COMMIT) -X main.date=$(DATE)
 
 .PHONY: build install test test-integration-helpers clean