build: enable Protocol Buffers v32 experimental editions support

- Add version check for protoc >= 32 to enable experimental editions flag
- Update Makefile to conditionally include --experimental_editions based on protoc version
- Maintain backward compatibility for older protoc versions

Author: ryan-steed-usa

proto/Makefile

@@ -1,10 +1,21 @@
+# Version 32 enabled edition 2024
+# https://github.com/protocolbuffers/protobuf/releases/tag/v32.0
+PROTOC_MIN_2024 := 32
+PROTOC_MAJOR_VER ?= $(shell python3 -m grpc_tools.protoc --version | cut -d' ' -f2 | cut -d. -f1)
+
+ifeq ($(shell [ $(PROTOC_MAJOR_VER) -ge $(PROTOC_MIN_2024) ] && echo pass),pass)
+	EXPERIMENTAL_EDITIONS := --experimental_editions
+else
+	EXPERIMENTAL_EDITIONS :=
+endif
+
 all: ../daemon/ui/protocol/ui.pb.go ../ui/opensnitch/ui_pb2.py
 
 ../daemon/ui/protocol/ui.pb.go: ui.proto
 	protoc -I. ui.proto --go_out=../daemon/ui/protocol/ --go-grpc_out=../daemon/ui/protocol/ --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative
 
 ../ui/opensnitch/ui_pb2.py: ui.proto
-	python3 -m grpc_tools.protoc -I. --python_out=../ui/opensnitch/proto/ --grpc_python_out=../ui/opensnitch/proto/ ui.proto
+	python3 -m grpc_tools.protoc $(EXPERIMENTAL_EDITIONS) -I. --python_out=../ui/opensnitch/proto/ --grpc_python_out=../ui/opensnitch/proto/ ui.proto
 
 clean:
 	@rm -rf ../daemon/ui/protocol/ui.pb.go