Add -NoBuild support to PMC Update-Database

[Copilot]

Fixes #38677

Update-Database in Package Manager Console always triggers a build, which can cause the command to stop on NuGet vulnerability warnings like NU1902 even when users only need to apply migrations. This aligns Update-Database with the existing Add-Migration -NoBuild escape hatch.

• PMC command surface

  • Added NoBuild switch parameter to Update-Database in EntityFrameworkCore.psm1.
  • Forwarded the flag to the shared execution path via -skipBuild:$NoBuild.

• Help text

  • Documented NoBuild in both scripts for Update-Database.

# New usage to bypass build-time NU1902 blocking in PMC
Update-Database -NoBuild

[Copilot]

Pull request overview

Adds a -NoBuild escape hatch to the Package Manager Console Update-Database command so users can apply migrations without triggering a build (e.g., avoiding NU1902 build blocking), aligning with the existing Add-Migration -NoBuild behavior.

Changes:

• Added NoBuild switch and help text to Update-Database in the primary PMC module.
• Forwarded -NoBuild to the shared execution path via -skipBuild:$NoBuild.
• Updated the legacy PS2 module signature/help to keep parameter binding consistent across module variants.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/EFCore.Tools/tools/EntityFrameworkCore.psm1	Adds Update-Database -NoBuild and wires it to the shared EF helper via -skipBuild.
src/EFCore.Tools/tools/EntityFrameworkCore.PS2.psm1	Adds NoBuild to the Update-Database signature/help for compatibility with the PS2 variant.

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