Use new validate-rsis for workflow (#12997)

* Use new validate-rsis for workflow

* A

* Add python deps

* --ignore-installed

* Make it only work on RSI changes again.

* Fix a bunch of RSIs.

Resources/Textures/Objects/Tools/cable-coils.rsi/meta.json

@@ -1,6 +1,6 @@
 {
   "version": 1,
-  "license": "CC BY-SA 3.0",
+  "license": "CC-BY-SA-3.0",
   "copyright": "Taken from tgstation and modified by SweptWasTaken at commit https://github.com/tgstation/tgstation/commit/77608a9f46b06a46f0f6b1be061755f68cc255a3",
   "size": {
     "x": 32,

Resources/Textures/Objects/Tools/welder_experimental.rsi/meta.json

@@ -86,6 +86,10 @@
           0.2
         ]
       ]
+    },
+    {
+      "name": "equipped-BELT",
+      "directions": 4
     }
   ]
 }