Update package.json and changelog for release 9.0.2

[jakelacey2012]

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Description

• Updates changelog to include refactor: reduce library size by using lodash specific dependencies #933 and security: updating semver to 7.5.4 to resolve CVE-2022-25883 #932
• Updates version to 9.0.2.

References

• refactor: reduce library size by using lodash specific dependencies #933
• security: updating semver to 7.5.4 to resolve CVE-2022-25883 #932

Testing

Test coverage already covers the changes, and we have tested the changes in the referenced PRs.

• This change adds test coverage for new/changed/fixed functionality

Checklist

• I have added documentation for new/changed functionality in this PR or in auth0.com/docs
• All active GitHub checks for tests, formatting, and security are passing
• The correct base branch is being used, if not the default branch