Merge pull request 'Update some mobs' appearances (texture & spawn egg) to be original' (#4973) from pp_mobs into master

Reviewed-on: https://git.minetest.land/VoxeLibre/VoxeLibre/pulls/4973
Reviewed-by: teknomunk <teknomunk@protonmail.com>
Reviewed-by: the-real-herowl <the-real-herowl@noreply.git.minetest.land>

mods/ENTITIES/mobs_mc/chicken.lua

@@ -164,4 +164,4 @@ mcl_mobs:spawn_setup({
 })
 
 -- spawn eggs
-mcl_mobs.register_egg("mobs_mc:chicken", S("Chicken"), "#a1a1a1", "#ff0000", 0)
+mcl_mobs.register_egg("mobs_mc:chicken", S("Chicken"), "#ddc3a8", "#ff0000", 0)

mods/ENTITIES/mobs_mc/spider.lua

@@ -298,5 +298,5 @@ mcl_mobs:spawn_setup({
 mcl_mobs:non_spawn_specific("mobs_mc:cave_spider","overworld",0,7)
 
 -- spawn eggs
-mcl_mobs.register_egg("mobs_mc:spider", S("Spider"), "#342d26", "#a80e0e", 0)
-mcl_mobs.register_egg("mobs_mc:cave_spider", S("Cave Spider"), "#0c424e", "#a80e0e", 0)
+mcl_mobs.register_egg("mobs_mc:spider", S("Spider"), "#422923", "#f15d22", 0)
+mcl_mobs.register_egg("mobs_mc:cave_spider", S("Cave Spider"), "#2a2027", "#f15d22", 0)

mods/ENTITIES/mobs_mc/squid.lua

@@ -217,4 +217,4 @@ mcl_mobs:spawn_setup({
 })
 
 -- spawn eggs
-mcl_mobs.register_egg("mobs_mc:squid", S("Squid"), "#223b4d", "#708999", 0)
+mcl_mobs.register_egg("mobs_mc:squid", S("Squid"), "#1f3044", "#567695", 0)