Set networkIsolationPolicy on release pipelines

[Copilot]

Adds networkIsolationPolicy: Permissive,CFSClean,CFSClean2,CFSClean3 under parameters.settings in the 1ES MicroBuild template extension for the three release pipelines.

• eng/pipelines/VS-release.yml: inserted settings block above pool.
• eng/pipelines/VSCode-release.yml: same.
• eng/pipelines/DebuggerTesting-release.yml: same. (Included since the problem statement listed VSCode-release.yml twice — assumed typo; happy to drop if not intended.)

extends:
  template: azure-pipelines/MicroBuild.1ES.Official.yml@MicroBuildTemplate
  parameters:
    settings:
      networkIsolationPolicy: Permissive,CFSClean,CFSClean2,CFSClean3
    pool:
      name: VSEngSS-MicroBuild2022-1ES
      os: windows
    sdl:
      ...