Update dependency com.google.guava:guava to v30

[dev-mend-for-github-com[bot]]

This PR contains the following updates:

Package	Type	Update	Change
com.google.guava:guava	compile	major	21.0 -> 30.0-android

By merging this PR, the issue #4 will be automatically resolved and closed:

Severity	CVSS Score	CVE
Medium	5.9	CVE-2018-10237
Low	3.3	CVE-2020-8908

---

Release Notes

google/guava

### [`v23.0`](https://togithub.com/google/guava/releases/tag/v23.0): 23.0 Final [Guava 23.0](https://togithub.com/google/guava/wiki/Release23) release. ### [`v22.0`](https://togithub.com/google/guava/releases/tag/v22.0): 22.0 [Compare Source](https://togithub.com/google/guava/compare/v21.0...v22.0) Final [Guava 22.0](https://togithub.com/google/guava/wiki/Release22) release.

---

• [ ] If you want to rebase/retry this PR, check this box

[dev-mend-for-github-com[bot]]

Edited/Blocked Notification

Renovate will not automatically rebase this PR, because it does not recognize the last commit author and assumes somebody else may have edited the PR. You can manually request rebase by checking the rebase/retry box above.

⚠ Warning: custom changes will be lost.