Bump compose beta version

Signed-off-by: Guillaume Tardif <[email protected]>

builder.Makefile

@@ -28,7 +28,7 @@ STATIC_FLAGS=CGO_ENABLED=0
 
 GIT_TAG?=$(shell git describe --tags --match "v[0-9]*")
 
-LDFLAGS="-s -w -X $(PKG_NAME)/internal.Version=${GIT_TAG} -X $(PKG_NAME)/internal.ComposePluginVersion=2.0.0-beta.1"
+LDFLAGS="-s -w -X $(PKG_NAME)/internal.Version=${GIT_TAG} -X $(PKG_NAME)/internal.ComposePluginVersion=2.0.0-beta.2"
 GO_BUILD=$(STATIC_FLAGS) go build -trimpath -ldflags=$(LDFLAGS)
 
 BINARY?=bin/docker