[feature] proto exec as option for moon tasks

**Describe the solution you'd like** It would be nice to have an attribute within `options` for setting `proto exec` as a kind of wrapper for the following `command`. I would clearly state that this is only valid for `commands` and not `scripts`. The huge benefit would be that we are developing and deploying a lot of tools via proto and using the `activate_environment` for specifying environment variables like `JAVA_HOME`. When we want to to execute `java -jar` we have to have a `.prototools` within the execution directory in order to get the correct java version. When now in the same execution directory another java tool will be called which is depending on another version of java, the .prototools will not support this natively. So at the moment we are saying: `proto exec java@21 -- java -jar this.jar` and `proto exec java@8 -- java -jar another.jar` So the options can look like this ``` options: proto_exec_args: ["java@21" ] // This shall be an array to support multiple tools ``` moon will than wrap the `command` into the `proto exec $proto_exec_args --` So that we as endusers only declare: `java -jar this.jar` in the `command` block The `proto_exec_args` can also be extended to have the `--tools-from-config` to support the `.prototools` behaivour.