ci: 📦 update angular-cli monorepo to v18.2.6

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@angular-devkit/build-angular	18.2.5 -> 18.2.6
@angular-devkit/core	18.2.5 -> 18.2.6
@angular-devkit/schematics	18.2.5 -> 18.2.6
@schematics/angular	18.2.5 -> 18.2.6

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Release Notes

angular/angular-cli (@​angular-devkit/build-angular)

### [`v18.2.6`](https://redirect.github.com/angular/angular-cli/releases/tag/18.2.6) [Compare Source](https://redirect.github.com/angular/angular-cli/compare/18.2.5...18.2.6) ### 18.2.6 (2024-09-25) ##### [@​angular/build](https://redirect.github.com/angular/build) | Commit | Description | | -- | -- | | [](https://redirect.github.com/angular/angular-cli/commit/9d0b67124e4855c5c4a2101b64f8ed86f8624561) | allow missing HTML file request to fallback to index | | [](https://redirect.github.com/angular/angular-cli/commit/5fea635b20b29429e355072c5adc5bf2a597a267) | update rollup to 4.22.4 |

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