[Snyk] Security upgrade typeorm from 0.2.45 to 0.3.0

[evereq]

This PR was automatically created by Snyk using the credentials of a real user.

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

#### Changes included in this PR - Changes to the following files to upgrade the vulnerable dependencies to a fixed version: - packages/core/package.json #### Vulnerabilities that will be fixed ##### With an upgrade: Severity | Priority Score (*) | Issue | Breaking Change | Exploit Maturity :-------------------------:|-------------------------|:-------------------------|:-------------------------|:-------------------------  | **718/1000**
**Why?** Proof of Concept exploit, Recently disclosed, Has a fix available, CVSS 6.5 | SQL Injection
[SNYK-JS-TYPEORM-2940870](https://snyk.io/vuln/SNYK-JS-TYPEORM-2940870) | No | Proof of Concept (*) Note that the real score may have changed since the PR was raised.

Commit messages

Package name: typeorm

The new version differs by 3 commits.

• 3b8a031 0.3.0 (#8616)
• 5608956 refactor: remove spaces for consistency (#8751)
• 486f8c5 version bump

See the full diff

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