message: Update release date in changelog
diff: # CodeQL Action and CodeQL Runner Changelog
  -## 1.0.10 - 02 Aug 2021
  +## 1.0.10 - 03 Aug 2021
  - Fix an issue where a summary of diagnostics information from CodeQL was not output to the logs of the `analyze` step of the Action. [#672](https://github.com/github/codeql-action/pull/672)
  