fix: bump typescript from 3.9.6 to 3.9.7 (#356)

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.9.6 to 3.9.7.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v3.9.6...v3.9.7)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

package.json

@@ -56,7 +56,7 @@
  "strip-ansi": "6.0.0",
  "ts-node": "8.10.1",
  "tsconfig-paths": "3.9.0",
- "typescript": "3.9.6"
+ "typescript": "3.9.7"
  },
  "devDependencies": {
  "assertthat": "5.2.1",