feat: migrate from libcompose to compose-go (#1547)

* feat: migrate from libcompose to compose-go

libcompose has been deprecated since summer 2021 in favor of https://github.com/compose-spec/compose-go.
Kompose should now be able to load all versions of compose.

* chore: replace golint with staticcheck

golint has been deprecated. Recommended replacement is staticcheck.

Makefile

@@ -91,15 +91,15 @@ gen-cmd:
 
 # run all validation tests
 .PHONY: validate
-validate: gofmt vet lint
+validate: gofmt vet staticcheck
 
 .PHONY: vet
 vet:
 	go vet ./pkg/...
 
-.PHONY: lint
-lint:
-	golint ./pkg/...
+.PHONY: staticcheck
+staticcheck:
+	staticcheck ./pkg/...
 
 .PHONY: gofmt
 gofmt:
@@ -114,7 +114,7 @@ test: bin test-dep  validate test-unit-cover install test-cmd
 test-dep:
 	go install github.com/mattn/goveralls@latest
 	go install github.com/modocache/gover@latest
-	go install golang.org/x/lint/golint@latest
+	go install honnef.co/go/tools/cmd/staticcheck@latest
 	go install github.com/mitchellh/gox@latest