docs(CHANGELOG): fix typos

[BobConanDev]

I really enjoyed using this project, nice work! Caught a couple of typos in the CHANGELOG.md though 😛

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Name	Status	Preview	Comments	Updated (UTC)
react-native-firebase	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Nov 22, 2024 7:50pm

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
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[mikehardy]

😄 sure - even for tiny things we need the CLA signed, but this could merge, yes