build(deps): bump contentful-sdk-core from 6.4.5 to 6.4.6
build(deps): bump contentful-sdk-core from 6.4.5 to 6.4.6

Bumps [contentful-sdk-core](https://github.com/contentful/contentful-sdk-core) from 6.4.5 to 6.4.6.
- [Release notes](https://github.com/contentful/contentful-sdk-core/releases)
- [Commits](https://github.com/contentful/contentful-sdk-core/compare/v6.4.5...v6.4.6)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
contentful/contentful.js