Update package for new protobuf

[PichuChen]

OS version:

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 24.04.1 LTS
Release:        24.04
Codename:       noble

Golang version

$ go version
go version go1.24.0 linux/amd64

protoc-gen-go-grpc Version

$ protoc-gen-go-grpc -version
protoc-gen-go-grpc 1.5.1

protoc version:

$ protoc --version
libprotoc 3.21.12

Error message:

# github.com/ptt/pttweb/proto/man
proto/man/man.pb.go:463:57: unsafe.Slice requires go1.17 or later (-lang was set to go1.15; check go.mod)
proto/man/man.pb.go:463:70: unsafe.StringData requires go1.20 or later (-lang was set to go1.15; check go.mod)
proto/man/man.pb.go:470:32: predeclared any requires go1.18 or later (-lang was set to go1.15; check go.mod)
proto/man/man.pb.go:501:19: unsafe.Slice requires go1.17 or later (-lang was set to go1.15; check go.mod)
proto/man/man.pb.go:501:32: unsafe.StringData requires go1.20 or later (-lang was set to go1.15; check go.mod)
proto/man/man_grpc.pb.go:24:16: undefined: grpc.SupportPackageIsVersion9
proto/man/man_grpc.pb.go:48:41: undefined: grpc.StaticMethod
proto/man/man_grpc.pb.go:58:41: undefined: grpc.StaticMethod
proto/man/man_grpc.pb.go:99:38: undefined: grpc.ServiceRegistrar
# github.com/ptt/pttweb/proto/api
proto/api/board.pb.go:1282:59: unsafe.Slice requires go1.17 or later (-lang was set to go1.15; check go.mod)
proto/api/board.pb.go:1282:72: unsafe.StringData requires go1.20 or later (-lang was set to go1.15; check go.mod)
proto/api/board.pb.go:1289:34: predeclared any requires go1.18 or later (-lang was set to go1.15; check go.mod)
proto/api/board.pb.go:1346:49: predeclared any requires go1.18 or later (-lang was set to go1.15; check go.mod)
proto/api/board.pb.go:1354:19: unsafe.Slice requires go1.17 or later (-lang was set to go1.15; check go.mod)
proto/api/board.pb.go:1354:32: unsafe.StringData requires go1.20 or later (-lang was set to go1.15; check go.mod)
proto/api/board_grpc.pb.go:24:16: undefined: grpc.SupportPackageIsVersion9
proto/api/board_grpc.pb.go:54:41: undefined: grpc.StaticMethod
proto/api/board_grpc.pb.go:64:41: undefined: grpc.StaticMethod
proto/api/board_grpc.pb.go:147:40: undefined: grpc.ServiceRegistrar
proto/api/board_grpc.pb.go:64:41: too many errors

Planned repair steps:

1. Update go.mod golang version to 1.23
2. Update google.golang.org/grpc from v1.31.1 to v1.64.0
3. Build binary

Opt. 4. Update deprecated func grpc.Dial