chore: regenerate Podfile.lock for v4.0.0

Version bump in package.json propagates to the podspec's s.version,
which requires the sample app's Podfile.lock to be regenerated.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: kieran-osgood-shopify

sample/ios/Podfile.lock

@@ -2578,7 +2578,7 @@ PODS:
     - ReactCommon/turbomodule/core
     - SocketRocket
     - Yoga
-  - RNShopifyCheckoutSheetKit (3.7.0):
+  - RNShopifyCheckoutSheetKit (4.0.0):
     - boost
     - DoubleConversion
     - fast_float
@@ -2996,7 +2996,7 @@ SPEC CHECKSUMS:
   RNGestureHandler: eeb622199ef1fb3a076243131095df1c797072f0
   RNReanimated: 288616f9c66ff4b0911f3862ffcf4104482a2adc
   RNScreens: 3fc29af06302e1f1c18a7829fe57cbc2c0259912
-  RNShopifyCheckoutSheetKit: 979ca69f1abbd0b38c3e996879e77a5b42a0103a
+  RNShopifyCheckoutSheetKit: 945c81763e3f84f273fc4f4a96b51837896c2e0a
   RNVectorIcons: be4d047a76ad307ffe54732208fb0498fcb8477f
   ShopifyCheckoutSheetKit: 5bdc6c6c0dafc5ef15daa5963c03547bf6bfff6a
   SocketRocket: d4aabe649be1e368d1318fdf28a022d714d65748