Build error: ui/protocol/ui_grpc.pb.go: undefined: grpc.StaticMethod

On Archlinux I'm trying to build and install opensnitch (UI) from AUR as I've done lots of times before

I'm using latest and greatest opensnitch-git PKGBUILD from AUR:

https://aur.archlinux.org/packages/opensnitch-git

```
...
==> Starting build()...
go: finding module for package github.com/golang/protobuf/protoc-gen-go
go: downloading github.com/golang/protobuf v1.5.4
go: downloading google.golang.org/protobuf v1.33.0
go: finding module for package google.golang.org/grpc/cmd/protoc-gen-go-grpc
go: downloading google.golang.org/grpc v1.64.0
go: downloading google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.4.0
go: downloading google.golang.org/protobuf v1.34.1
~/.cache/yay/opensnitch-git/src/opensnitch/proto ~/.cache/yay/opensnitch-git/src/opensnitch
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
python3 -m grpc_tools.protoc -I. --python_out=../ui/opensnitch/ --grpc_python_out=../ui/opensnitch/ ui.proto
~/.cache/yay/opensnitch-git/src/opensnitch
~/.cache/yay/opensnitch-git/src/opensnitch/daemon ~/.cache/yay/opensnitch-git/src/opensnitch
go: downloading github.com/google/gopacket v1.1.19
go: downloading github.com/iovisor/gobpf v0.2.0
go: downloading github.com/varlink/go v0.4.0
go: downloading github.com/vishvananda/netlink v1.1.1-0.20220115184804-dd687eb2f2d4
go: downloading golang.org/x/sys v0.13.0
go: downloading github.com/fsnotify/fsnotify v1.4.7
go: downloading golang.org/x/net v0.17.0
go: downloading google.golang.org/grpc v1.32.0
go: downloading google.golang.org/protobuf v1.26.0
go: downloading github.com/golang/protobuf v1.5.0
go: downloading github.com/google/nftables v0.1.0
go: downloading github.com/google/uuid v1.3.0
go: downloading github.com/vishvananda/netns v0.0.0-20200728191858-db3c7e526aae
go: downloading google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55
go: downloading github.com/mdlayher/netlink v1.4.2
go: downloading golang.org/x/text v0.13.0
go: downloading github.com/google/go-cmp v0.5.6
go: downloading github.com/josharian/native v0.0.0-20200817173448-b6b71def0850
go: downloading github.com/mdlayher/socket v0.0.0-20211102153432-57e3fa563ecb
go: downloading honnef.co/go/tools v0.2.2
go: downloading golang.org/x/tools v0.6.0
go: downloading github.com/BurntSushi/toml v0.4.1
go: downloading golang.org/x/mod v0.8.0
go: module github.com/golang/protobuf is deprecated: Use the "google.golang.org/protobuf" module instead.
# github.com/evilsocket/opensnitch/daemon/ui/protocol
ui/protocol/ui_grpc.pb.go:19:16: undefined: grpc.SupportPackageIsVersion8
ui/protocol/ui_grpc.pb.go:49:41: undefined: grpc.StaticMethod
ui/protocol/ui_grpc.pb.go:59:41: undefined: grpc.StaticMethod
ui/protocol/ui_grpc.pb.go:69:41: undefined: grpc.StaticMethod
ui/protocol/ui_grpc.pb.go:79:41: undefined: grpc.StaticMethod
ui/protocol/ui_grpc.pb.go:111:41: undefined: grpc.StaticMethod
make: *** [Makefile:21: opensnitchd] Error 1
```