build: Implement semantic versioning in build system

- Use git describe to generate semantic version from tags
- Inject version into binary via ldflags at build time
- Support development builds with commit hash fallback
- Ensure version consistency across all architectures
- Follow semantic versioning format (vMAJOR.MINOR.PATCH)

Part of #4450 - Build & Versioning Setup

Signed-off-by: NETIZEN-11 <kumarnitesh121411@gmail.com>

Author: NETIZEN-11

Makefile

@@ -21,10 +21,12 @@ YEAR_GEN          := $(shell date '+%Y')
 
 GOBIN := $(shell go env GOPATH)/bin
 GIT_COMMIT := $(shell git rev-parse --short HEAD)
+# Use git describe to get semantic version, fallback to commit hash for dev builds
+VERSION := $(shell git describe --tags --match='v*' --abbrev=0 2>/dev/null || echo "v0.0.0-dev+${GIT_COMMIT}")
 
 export KPT_FN_WASM_RUNTIME ?= nodejs
 
-LDFLAGS := -ldflags "-X github.com/kptdev/kpt/run.version=${GIT_COMMIT}
+LDFLAGS := -ldflags "-X github.com/kptdev/kpt/run.version=${VERSION}
 ifeq ($(OS),Windows_NT)
 	# Do nothing
 else