Add spec argument to generator commands

Author: SgtPooki

package.json

@@ -156,9 +156,9 @@
     "pregen": "openapi-generator-cli validate -i https://raw.githubusercontent.com/ipfs/pinning-services-api-spec/v1.0.0/ipfs-pinning-service.yaml",
     "gen": "run-p gen:fetch",
     "postgen": "tsc-silent -p tsconfig.generated.json --suppress 6133@generated 6192@generated --stats",
-    "gen:fetch": "openapi-generator-cli generate --generator-key fetch",
-    "gen:node": "openapi-generator-cli generate --generator-key node",
-    "gen:ts": "openapi-generator-cli generate --generator-key ts"
+    "gen:fetch": "openapi-generator-cli generate --generator-key fetch -i https://raw.githubusercontent.com/ipfs/pinning-services-api-spec/v1.0.0/ipfs-pinning-service.yaml",
+    "gen:node": "openapi-generator-cli generate --generator-key node -i https://raw.githubusercontent.com/ipfs/pinning-services-api-spec/v1.0.0/ipfs-pinning-service.yaml",
+    "gen:ts": "openapi-generator-cli generate --generator-key ts -i https://raw.githubusercontent.com/ipfs/pinning-services-api-spec/v1.0.0/ipfs-pinning-service.yaml"
   },
   "dependencies": {
     "fetch-ponyfill": "^7.1.0"