feat(puzzles): Register 2022/day02 solver

internal/puzzles/solutions/register_2022.go

@@ -6,4 +6,6 @@ import (
 	*/
 	// register day01 solution.
 	_ "github.com/obalunenko/advent-of-code/internal/puzzles/solutions/2022/day01"
+	// register day02 solution.
+	_ "github.com/obalunenko/advent-of-code/internal/puzzles/solutions/2022/day02"
 )