[Snyk] Security upgrade gulp from 4.0.2 to 5.0.0

[lubber-de]

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 `yarn` dependencies of this project.

#### Changes included in this PR - Changes to the following files to upgrade the vulnerable dependencies to a fixed version: - package.json #### Note for [zero-installs](https://yarnpkg.com/features/zero-installs) users If you are using the Yarn feature [zero-installs](https://yarnpkg.com/features/zero-installs) that was introduced in Yarn V2, note that this PR does not update the `.yarn/cache/` directory meaning this code cannot be pulled and immediately developed on as one would expect for a zero-install project - you will need to run `yarn` to update the contents of the `./yarn/cache` directory. If you are not using zero-install you can ignore this as your flow should likely be unchanged.

⚠️ Warning

``` Failed to update the yarn.lock, please update manually before merging. ```

#### Vulnerabilities that will be fixed ##### With an upgrade: Severity | Priority Score (*) | Issue | Breaking Change | Exploit Maturity :-------------------------:|-------------------------|:-------------------------|:-------------------------|:-------------------------  | **696/1000**
**Why?** Proof of Concept exploit, Has a fix available, CVSS 7.5 | Regular Expression Denial of Service (ReDoS)
[SNYK-JS-ANSIREGEX-1583908](https://snyk.io/vuln/SNYK-JS-ANSIREGEX-1583908) | Yes | Proof of Concept  | **586/1000**
**Why?** Proof of Concept exploit, Has a fix available, CVSS 5.3 | Regular Expression Denial of Service (ReDoS)
[SNYK-JS-GLOBPARENT-1016905](https://snyk.io/vuln/SNYK-JS-GLOBPARENT-1016905) | Yes | Proof of Concept  | **631/1000**
**Why?** Proof of Concept exploit, Has a fix available, CVSS 6.2 | Missing Release of Resource after Effective Lifetime
[SNYK-JS-INFLIGHT-6095116](https://snyk.io/vuln/SNYK-JS-INFLIGHT-6095116) | Yes | Proof of Concept  | **589/1000**
**Why?** Has a fix available, CVSS 7.5 | Prototype Pollution
[SNYK-JS-UNSETVALUE-2400660](https://snyk.io/vuln/SNYK-JS-UNSETVALUE-2400660) | Yes | No Known Exploit (*) Note that the real score may have changed since the PR was raised. Check the changes in this PR to ensure they won't cause issues with your project. ------------ **Note:** *You are seeing this because you or someone else with access to this repository has authorized Snyk to open fix PRs.* For more information: 🧐 [View latest project report](https://app.snyk.io/org/fomantic/project/c390af94-561f-4705-9ed6-4fd92708d95a?utm_source=github&utm_medium=referral&page=fix-pr) 🛠 [Adjust project settings](https://app.snyk.io/org/fomantic/project/c390af94-561f-4705-9ed6-4fd92708d95a?utm_source=github&utm_medium=referral&page=fix-pr/settings) 📚 [Read more about Snyk's upgrade and patch logic](https://support.snyk.io/hc/en-us/articles/360003891078-Snyk-patches-to-fix-vulnerabilities) [//]: # (snyk:metadata:{"prId":"c181ae17-2e51-4dac-941a-1d0391b95baa","prPublicId":"c181ae17-2e51-4dac-941a-1d0391b95baa","dependencies":[{"name":"gulp","from":"4.0.2","to":"5.0.0"}],"packageManager":"yarn","projectPublicId":"c390af94-561f-4705-9ed6-4fd92708d95a","projectUrl":"https://app.snyk.io/org/fomantic/project/c390af94-561f-4705-9ed6-4fd92708d95a?utm_source=github&utm_medium=referral&page=fix-pr","type":"auto","patch":[],"vulns":["SNYK-JS-ANSIREGEX-1583908","SNYK-JS-GLOBPARENT-1016905","SNYK-JS-INFLIGHT-6095116","SNYK-JS-UNSETVALUE-2400660"],"upgrade":["SNYK-JS-ANSIREGEX-1583908","SNYK-JS-GLOBPARENT-1016905","SNYK-JS-INFLIGHT-6095116","SNYK-JS-UNSETVALUE-2400660"],"isBreakingChange":true,"env":"prod","prType":"fix","templateVariants":["updated-fix-title","pr-warning-shown","priorityScore"],"priorityScoreList":[696,586,631,589],"remediationStrategy":"vuln"}) --- **Learn how to fix vulnerabilities with free interactive lessons:** 🦉 [Regular Expression Denial of Service (ReDoS)](https://learn.snyk.io/lesson/redos/?loc=fix-pr) 🦉 [Prototype Pollution](https://learn.snyk.io/lesson/prototype-pollution/?loc=fix-pr)

[lubber-de]

This needs code fixes, as

• copied assets are broken now
• concatenated components are not ordered anymore which possibly breaks CSS specificity .. i will investigate and prepare a separate PR

[lubber-de]

Superseeded by #3032