🐞 Bug report

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Is this a regression?

Yes, the previous version in which this bug was not present was:
"@angular-builders/custom-webpack": "11.0.0"
"webpack": "4.43.0"

Description

We are using "@angular-builders/custom-webpack": "11.0.0" in our devDependencies, and everything worked as expected with the usage of "webpack": "4.43.0".

After we updated our "webpack" dependency to version "5.27.2" we got some warnings related to "@angular-devkit/build-angular" required packages, these are the warnings:

• @angular-devkit/build-webpack@0.1102.5 requires a peer of webpack@^4.6.0 but none is installed. You must install peer dependencies yourself.
• @ngtools/webpack@11.2.5 requires a peer of webpack@^4.0.0 but none is installed. You must install peer dependencies yourself.
• webpack-dev-middleware@3.7.2 requires a peer of webpack@^4.0.0 but none is installed. You must install peer dependencies yourself.

It can be reproduced with the latest "@angular-devkit/build-angular": "0.1102.5"

🔬 Minimal Reproduction

ng new test-app
npm install webpack@latest

🔥 Exception or Error

npm WARN @angular-devkit/build-webpack@0.1102.5 requires a peer of webpack@^4.6.0 but none is installed. You must install peer dependencies yourself.
npm WARN @ngtools/webpack@11.2.5 requires a peer of webpack@^4.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN webpack-dev-middleware@3.7.2 requires a peer of webpack@^4.0.0 but none is installed. You must install peer dependencies yourself.

🌍 Your Environment

Angular CLI: 11.2.5
Node: 14.15.4
OS: win32 x64

Angular: 11.2.6
... animations, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router
Ivy Workspace: Yes

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1102.5
@angular-devkit/build-angular   0.1102.5
@angular-devkit/core            11.2.5
@angular-devkit/schematics      11.2.5
@angular/cli                    11.2.5
@schematics/angular             11.2.5
@schematics/update              0.1102.5
rxjs                            6.6.6
typescript                      4.1.5
webpack                         5.27.2

Anything else relevant?