Distro metadata - Update Linux Mint 22.3 to v6.19.3-1

Author: github-actions[bot]

docs/tools/distro-metadata.json

@@ -80,26 +80,26 @@
     {
       "name": "Linux Mint - Cinnamon",
       "iso": [
-        "https://github.com/t2linux/T2-Mint/releases/download/v6.18.5-1/linuxmint-22.3-cinnamon-6.18.5-t2-noble.iso.00",
-        "https://github.com/t2linux/T2-Mint/releases/download/v6.18.5-1/linuxmint-22.3-cinnamon-6.18.5-t2-noble.iso.01"
+        "https://github.com/t2linux/T2-Mint/releases/download/v6.19.3-1/linuxmint-22.3-cinnamon-6.19.3-t2-noble.iso.00",
+        "https://github.com/t2linux/T2-Mint/releases/download/v6.19.3-1/linuxmint-22.3-cinnamon-6.19.3-t2-noble.iso.01"
       ],
-      "sha256": "TBD"
+      "sha256": ""
     },
     {
       "name": "Linux Mint - Mate",
       "iso": [
-        "https://github.com/t2linux/T2-Mint/releases/download/v6.18.5-1/linuxmint-22.3-mate-6.18.5-t2-noble.iso.00",
-        "https://github.com/t2linux/T2-Mint/releases/download/v6.18.5-1/linuxmint-22.3-mate-6.18.5-t2-noble.iso.01"
+        "https://github.com/t2linux/T2-Mint/releases/download/v6.19.3-1/linuxmint-22.3-mate-6.19.3-t2-noble.iso.00",
+        "https://github.com/t2linux/T2-Mint/releases/download/v6.19.3-1/linuxmint-22.3-mate-6.19.3-t2-noble.iso.01"
       ],
-      "sha256": "TBD"
+      "sha256": ""
     },
     {
       "name": "Linux Mint - XFCE",
       "iso": [
-        "https://github.com/t2linux/T2-Mint/releases/download/v6.18.5-1/linuxmint-22.3-xfce-6.18.5-t2-noble.iso.00",
-        "https://github.com/t2linux/T2-Mint/releases/download/v6.18.5-1/linuxmint-22.3-xfce-6.18.5-t2-noble.iso.01"
+        "https://github.com/t2linux/T2-Mint/releases/download/v6.19.3-1/linuxmint-22.3-xfce-6.19.3-t2-noble.iso.00",
+        "https://github.com/t2linux/T2-Mint/releases/download/v6.19.3-1/linuxmint-22.3-xfce-6.19.3-t2-noble.iso.01"
       ],
-      "sha256": "TBD"
+      "sha256": ""
     },
     {
       "name": "NixOS Gnome",