feat: add uuid and rand number functions

[pd93]

Closes #1346

Adds the following random functions:

• uuid
• randInt
• randIntN
• randFloat

version: '3'

tasks:
  default:
    cmds:
      - echo "{{uuid}}"
      - echo "{{randInt}}"
      - echo "{{randIntN 10}}"
      - echo "{{randFloat}}"

task: [default] echo "054f74a5-19e3-47c0-a80e-50c8cac3e81b"
054f74a5-19e3-47c0-a80e-50c8cac3e81b
task: [default] echo "5927110203314446318"
5927110203314446318
task: [default] echo "7"
7
task: [default] echo "0.23945671"
0.23945671

[andreynering]

Is a random float really useful here? Integer might be enough. No strong opinion, just asking...

[pd93]

Maybe not, I really only added them as they come for free with the std lib. I can imagine that a number between 0 and 1 is sometimes useful in stats/probability. However, you're probably not going to be doing anything like that inside the Taskfile itself. I will remove for now and if someone gives a valid case for it in the future we can revisit pretty easily.