fix: upgraded callkit sample to react-native@0.77

[mayankofficial999]

Stack:

• feat: migrated callkit sample to realtimekit #18
• feat: migrated create_your_own_ui sample to realtimekit #17
• feat: migrated facetime sample to realtimekit #16
• feat: migrated ui-kit-sample to realtimekit #15
• feat: migrated core sample to realtimekit #14
• fix: upgraded core sdk sample to react-native@0.77 #13
• fix: upgraded facetime sample to react-native@0.77 #12
• fix: upgraded create_your_own_ui sample to react-native@0.77 #11
• fix: upgraded ui-kit sample to react-native@0.77 #10
• fix: upgraded callkit sample to react-native@0.77 #9 ⬅

⚠️ Part of a stack created by spr. Do not merge manually using the UI - doing so may have unexpected results.

[mayankofficial999]

✓ Commit merged in pull request #18