[Snyk] Security upgrade @angular-builders/custom-webpack from 15.0.0 to 18.0.0

[santebe]

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

 ### Snyk has created this PR to fix 1 vulnerabilities in the npm dependencies of this project. #### Snyk changed the following file(s): - `frontend/package.json` #### Vulnerabilities that will be fixed with an upgrade: | | Issue | Score | :-------------------------:|:-------------------------|:-------------------------  | Missing Release of Resource after Effective Lifetime
[SNYK-JS-INFLIGHT-6095116](https://snyk.io/vuln/SNYK-JS-INFLIGHT-6095116) |   **631**   --- > [!IMPORTANT] > > - Check the changes in this PR to ensure they won't cause issues with your project. > - Max score is 1000. Note that the real score may have changed since the PR was raised. > - This PR was automatically created by Snyk using the credentials of a real user. --- **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/santebe/project/e15fda4c-a937-4ea7-a4e8-959d19de310c?utm_source=github&utm_medium=referral&page=fix-pr) 📜 [Customise PR templates](https://docs.snyk.io/scan-using-snyk/pull-requests/snyk-fix-pull-or-merge-requests/customize-pr-templates) 🛠 [Adjust project settings](https://app.snyk.io/org/santebe/project/e15fda4c-a937-4ea7-a4e8-959d19de310c?utm_source=github&utm_medium=referral&page=fix-pr/settings) 📚 [Read about Snyk's upgrade logic](https://support.snyk.io/hc/en-us/articles/360003891078-Snyk-patches-to-fix-vulnerabilities) --- **Learn how to fix vulnerabilities with free interactive lessons:** 🦉 [Learn about vulnerability in an interactive lesson of Snyk Learn.](https://learn.snyk.io/?loc=fix-pr) [//]: # 'snyk:metadata:{"customTemplate":{"variablesUsed":[],"fieldsUsed":[]},"dependencies":[{"name":"@angular-builders/custom-webpack","from":"15.0.0","to":"18.0.0"}],"env":"prod","issuesToFix":[{"exploit_maturity":"Proof of Concept","id":"SNYK-JS-INFLIGHT-6095116","priority_score":631,"priority_score_factors":[{"type":"exploit","label":"Proof of Concept","score":107},{"type":"fixability","label":true,"score":214},{"type":"cvssScore","label":"6.2","score":310},{"type":"scoreVersion","label":"v1","score":1}],"severity":"medium","title":"Missing Release of Resource after Effective Lifetime"}],"prId":"6dea2578-5e67-469b-9eaa-a095c05f2fa7","prPublicId":"6dea2578-5e67-469b-9eaa-a095c05f2fa7","packageManager":"npm","priorityScoreList":[631],"projectPublicId":"e15fda4c-a937-4ea7-a4e8-959d19de310c","projectUrl":"https://app.snyk.io/org/santebe/project/e15fda4c-a937-4ea7-a4e8-959d19de310c?utm_source=github&utm_medium=referral&page=fix-pr","prType":"fix","templateFieldSources":{"branchName":"default","commitMessage":"default","description":"default","title":"default"},"templateVariants":["updated-fix-title","priorityScore"],"type":"auto","upgrade":["SNYK-JS-INFLIGHT-6095116"],"vulns":["SNYK-JS-INFLIGHT-6095116"],"patch":[],"isBreakingChange":true,"remediationStrategy":"vuln"}'

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