libretro: fix package versions

Those are not package version changes, we are just updating to match
expected version for maintainers/scripts/update.nix script.

Author: thiagokokada

pkgs/applications/emulators/libretro/cores/beetle-supafaust.nix

@@ -5,7 +5,7 @@
 }:
 mkLibretroCore {
   core = "mednafen-supafaust";
-  version = "0-unstable-2024-10-01";
+  version = "0-unstable-2024-09-30";
 
   src = fetchFromGitHub {
     owner = "libretro";

pkgs/applications/emulators/libretro/cores/desmume2015.nix

@@ -10,7 +10,7 @@
 }:
 mkLibretroCore {
   core = "desmume2015";
-  version = "0-unstable-2024-10-21";
+  version = "0-unstable-2022-04-05";
 
   src = fetchFromGitHub {
     owner = "libretro";

pkgs/applications/emulators/libretro/cores/mame2000.nix

@@ -6,7 +6,7 @@
 }:
 mkLibretroCore {
   core = "mame2000";
-  version = "0-unstable-2024-11-01";
+  version = "0-unstable-2024-07-01";
 
   src = fetchFromGitHub {
     owner = "libretro";

pkgs/applications/emulators/libretro/cores/mame2015.nix

@@ -7,7 +7,7 @@
 }:
 mkLibretroCore {
   core = "mame2015";
-  version = "0-unstable-2023-11-01";
+  version = "0-unstable-2023-10-31";
 
   src = fetchFromGitHub {
     owner = "libretro";

pkgs/applications/emulators/libretro/cores/mame2016.nix

@@ -8,7 +8,7 @@
 }:
 mkLibretroCore {
   core = "mame2016";
-  version = "0-unstable-2024-04-06";
+  version = "0-unstable-2022-04-06";
 
   src = fetchFromGitHub {
     owner = "libretro";

pkgs/applications/emulators/libretro/cores/mesen.nix

@@ -5,7 +5,7 @@
 }:
 mkLibretroCore {
   core = "mesen";
-  version = "0.9.9-unstable-2024-10-21";
+  version = "0-unstable-2024-10-21";
 
   src = fetchFromGitHub {
     owner = "libretro";

pkgs/applications/emulators/libretro/cores/mrboom.nix

@@ -5,7 +5,7 @@
 }:
 mkLibretroCore rec {
   core = "mrboom";
-  version = "5.5-unstable-2024-10-21";
+  version = "0-unstable-2024-10-21";
 
   src = fetchFromGitHub {
     owner = "Javanaise";

pkgs/applications/emulators/libretro/cores/opera.nix

@@ -6,7 +6,7 @@
 }:
 mkLibretroCore {
   core = "opera";
-  version = "0-unstable-2024-10-17";
+  version = "0-unstable-2024-10-16";
 
   src = fetchFromGitHub {
     owner = "libretro";

pkgs/applications/emulators/libretro/cores/snes9x2010.nix

@@ -5,7 +5,7 @@
 }:
 mkLibretroCore rec {
   core = "snes9x2010";
-  version = "0-unstable-2024-11-18";
+  version = "0-unstable-2024-11-19";
 
   src = fetchFromGitHub {
     owner = "libretro";

pkgs/applications/emulators/libretro/cores/thepowdertoy.nix

@@ -6,7 +6,7 @@
 }:
 mkLibretroCore {
   core = "thepowdertoy";
-  version = "0-unstable-2024-10-01";
+  version = "0-unstable-2024-09-30";
 
   src = fetchFromGitHub {
     owner = "libretro";