Address react and next CVEs

[konstantin-msft]

• Address react and next CVEs

[Copilot]

Pull request overview

This PR updates React and Next.js dependencies across sample applications and the msal-react library to address security vulnerabilities (CVEs). The changes update React from 19.1.0 to 19.1.2 and Next.js from 15.4.7 to 15.4.8.

Key Changes:

• React and react-dom updated from ^19.1.0 to ^19.1.2 across all React samples and msal-react devDependencies
• Next.js updated from ^15.4.7 to ^15.4.8 in the Next.js sample
• msal-react peer dependency updated to specify ^19.1.2 (note: this change has implications)

Reviewed changes

Copilot reviewed 7 out of 8 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
samples/msal-react-samples/typescript-sample/package.json	Updates React dependencies to address CVEs
samples/msal-react-samples/react-router-sample/package.json	Updates React dependencies to address CVEs
samples/msal-react-samples/nextjs-sample/package.json	Updates React and Next.js dependencies to address CVEs
samples/msal-react-samples/b2c-sample/package.json	Updates React dependencies to address CVEs
samples/msal-node-samples/ElectronSystemBrowserTestApp/package.json	Updates React dependencies to address CVEs
lib/msal-react/package.json	Updates React devDependencies and peer dependency constraint
package-lock.json	Lockfile updates reflecting dependency version changes