Bump babel-jest from 24.9.0 to 26.3.0

Bumps [babel-jest](https://github.com/facebook/jest/tree/HEAD/packages/babel-jest) from 24.9.0 to 26.3.0.
- [Release notes](https://github.com/facebook/jest/releases)
- [Changelog](https://github.com/facebook/jest/blob/master/CHANGELOG.md)
- [Commits](https://github.com/facebook/jest/commits/v26.3.0/packages/babel-jest)

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

package.json

@@ -68,7 +68,7 @@
 		"@nextcloud/eslint-plugin": "^1.4.0",
 		"acorn": "^7.1.1",
 		"babel-eslint": "^10.0.3",
-		"babel-jest": "^24.9.0",
+		"babel-jest": "^26.3.0",
 		"babel-loader": "^8.0.6",
 		"css-loader": "^3.2.0",
 		"eslint": "^6.8.0",