gives some items sound_vary true (#86467)

## About The Pull Request
changed the `sound_vary` var that gives `vary` to pickup/drop sounds to
`TRUE` on:
- grenade
- handcuffs
- lead pipe
- batons
- beaker
- drinking glass
## Why It's Good For The Game
will give more variety for the soundscape, only did it for items that
will sounds good with it
## Changelog
🆑 grungussuss
sound: some more items will vary in pitch when picking them up and
placing them down
/🆑

code/modules/projectiles/guns/ballistic.dm

@@ -7,6 +7,7 @@
 	w_class = WEIGHT_CLASS_NORMAL
 	pickup_sound = 'sound/items/gun_pick_up.ogg'
 	drop_sound = 'sound/items/gun_drop.ogg'
+	sound_vary = TRUE
 
 	///sound when inserting magazine
 	var/load_sound = 'sound/weapons/gun/general/magazine_insert_full.ogg'

code/modules/projectiles/guns/energy.dm

@@ -5,6 +5,7 @@
 	icon = 'icons/obj/weapons/guns/energy.dmi'
 	pickup_sound = 'sound/items/gun_pick_up.ogg'
 	drop_sound = 'sound/items/gun_drop.ogg'
+	sound_vary = TRUE
 
 	/// What type of power cell this uses
 	var/obj/item/stock_parts/power_store/cell