Bump github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream from 1.6.4 to 1.7.8 in /gov2/cloudfront (#7826)

Bump github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream

Bumps [github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream](https://github.com/aws/aws-sdk-go-v2) from 1.6.4 to 1.7.8.
- [Release notes](https://github.com/aws/aws-sdk-go-v2/releases)
- [Commits](aws/aws-sdk-go-v2@credentials/v1.6.4...service/m2/v1.7.8)

---
updated-dependencies:
- dependency-name: github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream
  dependency-version: 1.7.8
  dependency-type: indirect
...

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