[bug/infra] Lack of comments in release related PRs

[Kielek]

Release automation has difficulties while posting comments in PRs.
Current application does not have enough privileges to override locked conversation (otelbot-dotnet looks like not a collabolator).

Other parts are working fine.
Example: https://github.com/open-telemetry/opentelemetry-dotnet/actions/runs/18158254931/job/51682971557

  Import-Module .\build\scripts\prepare-release.psm1
  
  CreateReleaseTagAndPostNoticeOnPullRequest `
    -gitRepository ${env:GITHUB_REPOSITORY} `
    -pullRequestNumber ${env:ISSUE_NUMBER} `
    -expectedPrAuthorUserName ${env:EXPECTED_PR_AUTHOR_USER_NAME} `
    -gitUserName ${env:BOT_USER_NAME} `
    -gitUserEmail ${env:BOT_USER_EMAIL}
  shell: /usr/bin/pwsh -command ". '{0}'"
  env:
    GH_TOKEN: ***
    BOT_USER_EMAIL: 107717825+opentelemetrybot@users.noreply.github.com
    BOT_USER_NAME: opentelemetrybot
    EXPECTED_PR_AUTHOR_USER_NAME: app/otelbot-dotnet
    ISSUE_NUMBER: 6553
To https://github.com/open-telemetry/opentelemetry-dotnet
 * [new tag]           coreunstable-1.13.0-beta.1 -> coreunstable-1.13.0-beta.1
GraphQL: Unable to create comment because issue is locked (addComment)
Error: Process completed with exit code 1.

[martincostello]

What permissions does the app installation have?

A quick search suggests that pull-requests: write should be sufficient.