Bump version to 1.0.0

With the latest changes, I think it's clear the project has
reached maturity. Make it public by bumping version all the way
to 1.0.0.

Signed-off-by: Sergio Lopez <slp@redhat.com>

Author: slp

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "krunkit"
-version = "0.2.2"
+version = "1.0.0"
 authors = ["The krunkit Authors"]
 edition = "2021"
 description = "CLI tool to start VMs with libkrun"