[FIX] stock: fix typo in domain

Commit 49b965eb1ec6a7ec6c07fa643cc6ae35ee8b5d91 introduced
`product_tmpl_ids` into the context for displaying kit components but
did not use it in the domain due to a missing `s`.

This commit adds the missing `s` in the domain.

closes odoo/odoo#62870

X-original-commit: aa135eb966810311837f4d446962850bb5aec82d
Signed-off-by: William Henrotin <Whenrow@users.noreply.github.com>

addons/stock/models/stock_quant.py

@@ -46,7 +46,7 @@ class StockQuant(models.Model):
             return
         domain = [('type', '=', 'product')]
         if self.env.context.get('product_tmpl_ids') or self.env.context.get('product_tmpl_id'):
-            products = self.env.context.get('product_tmpl_id', []) + [self.env.context.get('product_tmpl_id', 0)]
+            products = self.env.context.get('product_tmpl_ids', []) + [self.env.context.get('product_tmpl_id', 0)]
             domain = expression.AND([domain, [('product_tmpl_id', 'in', products)]])
         return domain