feat: use go embed for swagger (#15216)

contrib/devtools/Makefile

@@ -47,22 +47,15 @@ GITHUBDIR := $(GOPATH)$(FS)src$(FS)github.com
 BUF_VERSION ?= 0.11.0
 
 TOOLS_DESTDIR  ?= $(GOPATH)/bin
-STATIK         = $(TOOLS_DESTDIR)/statik
 RUNSIM         = $(TOOLS_DESTDIR)/runsim
 
 tools: tools-stamp
-tools-stamp: statik runsim
+tools-stamp: runsim
 	# Create dummy file to satisfy dependency and avoid
 	# rebuilding when this Makefile target is hit twice
 	# in a row.
 	touch $@
 
-# Install the runsim binary
-statik: $(STATIK)
-$(STATIK):
-	@echo "Installing statik..."
-	@go install github.com/rakyll/statik@v0.1.6
-
 # Install the runsim binary
 runsim: $(RUNSIM)
 $(RUNSIM):
@@ -73,4 +66,4 @@ tools-clean:
 	rm -f $(STATIK) $(GOLANGCI_LINT) $(RUNSIM)
 	rm -f tools-stamp
 
-.PHONY: tools-clean statik runsim
+.PHONY: tools-clean runsim