fix sheets typing

Author: icecrasher321

apps/sim/blocks/blocks/google_sheets.ts

@@ -269,7 +269,7 @@ Return ONLY the JSON array - no explanations, no markdown, no extra text.`,
     credential: { type: 'string', description: 'Google Sheets access token' },
     spreadsheetId: { type: 'string', description: 'Spreadsheet identifier' },
     manualSpreadsheetId: { type: 'string', description: 'Manual spreadsheet identifier' },
-    range: { type: 'json', description: 'Cell range' },
+    range: { type: 'string', description: 'Cell range' },
     values: { type: 'json', description: 'Cell values data' },
     valueInputOption: { type: 'string', description: 'Value input option' },
     insertDataOption: { type: 'string', description: 'Data insertion option' },