fix: remove 10-item display limit in Agent Canvas configuration tables (#13049)

## Description

This PR fixes an issue where the input and variable configuration tables
in the Agent Canvas (specifically for **Begin**, **UserFillUp**, and
**Invoke** nodes) were truncated at 10 items.

**Root Cause:**
The tables utilized `@tanstack/react-table` with
`getPaginationRowModel()` enabled. Since the default page size is 10 and
no pagination UI controls were implemented, users could not access items
beyond the 10th row.

**Solution:**
Removed `getPaginationRowModel` from the table configurations. These
lists (inputs/variables) are typically short, so rendering all items in
a single scrollable view is the intended behavior.

* Modified `query-table.tsx`
* Modified `variable-table.tsx`


## How to verify

1. Create a **Begin**, **UserFillUp**, or **Invoke** node in the Agent
Canvas.
2. Add more than 10 input items or variables.
3. Verify that all items are visible in the list and not truncated at
the 10th item.

## What kind of change does this PR introduce?

* [x] Bugfix

web/src/pages/agent/form/begin-form/query-table.tsx

@@ -8,7 +8,6 @@ import {
   flexRender,
   getCoreRowModel,
   getFilteredRowModel,
-  getPaginationRowModel,
   getSortedRowModel,
   useReactTable,
 } from '@tanstack/react-table';
@@ -135,7 +134,6 @@ export function QueryTable({ data = [], deleteRecord, showModal }: IProps) {
     onSortingChange: setSorting,
     onColumnFiltersChange: setColumnFilters,
     getCoreRowModel: getCoreRowModel(),
-    getPaginationRowModel: getPaginationRowModel(),
     getSortedRowModel: getSortedRowModel(),
     getFilteredRowModel: getFilteredRowModel(),
     onColumnVisibilityChange: setColumnVisibility,

web/src/pages/agent/form/invoke-form/variable-table.tsx

@@ -8,7 +8,6 @@ import {
   flexRender,
   getCoreRowModel,
   getFilteredRowModel,
-  getPaginationRowModel,
   getSortedRowModel,
   useReactTable,
 } from '@tanstack/react-table';
@@ -135,7 +134,6 @@ export function VariableTable({
     onSortingChange: setSorting,
     onColumnFiltersChange: setColumnFilters,
     getCoreRowModel: getCoreRowModel(),
-    getPaginationRowModel: getPaginationRowModel(),
     getSortedRowModel: getSortedRowModel(),
     getFilteredRowModel: getFilteredRowModel(),
     onColumnVisibilityChange: setColumnVisibility,