Add support for server reflection v1

[profhenry]

io.grpc 1.66.0 added support for server reflection v1, see grpc/grpc-java#6724.
io.grpc now comes with

• ProtoReflectionServiceV1 which offers v1
• ProtoReflectionService which still offers v1alpha

When using grpc-spring with io.grpc >= 1.66.0 server reflection is still offered in version v1alpha, which works except for #1136

It would be nice if grpc-spring could also offer server reflection v1 (in addtition to v1alpha for backward compatible).
Maybe you could add a switch for choosing if v1 and/or v1alpha should be offered for server reflection.

Using server reflection v1 is easy, i tested replacing ProtoReflectionService by ProtoReflectionServiceV1 in

grpc-spring/grpc-server-spring-boot-starter/src/main/java/net/devh/boot/grpc/server/autoconfigure/GrpcReflectionServiceAutoConfiguration.java

Line 48 in a18aeeb

return ProtoReflectionService.newInstance();

This works fine and even basic authentication works properly.

[profhenry]

Srs, this is a new feature and not a bug.