Update integration tests for help text changes

Update test expectations to match the improved help text that clarifies
GitHub Actions environment requirement for PR auto-detection.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: runningcode

tests/integration/_cases/build/build-upload-help-macos.trycmd

@@ -45,8 +45,9 @@ Options:
           The reference (branch) to use for the upload. If not provided, the current reference will
           be used.
       --pr-number <pr_number>
-          The pull request number to use for the upload. If not provided, the PR number will be
-          automatically detected from GitHub Actions environment variables.
+          The pull request number to use for the upload. If not provided and running in a GitHub
+          Actions environment, the PR number will be automatically detected from GitHub Actions
+          environment variables.
       --build-configuration <build_configuration>
           The build configuration to use for the upload. If not provided, the current version will
           be used.

tests/integration/_cases/build/build-upload-help-not-macos.trycmd

@@ -44,8 +44,9 @@ Options:
           The reference (branch) to use for the upload. If not provided, the current reference will
           be used.
       --pr-number <pr_number>
-          The pull request number to use for the upload. If not provided, the PR number will be
-          automatically detected from GitHub Actions environment variables.
+          The pull request number to use for the upload. If not provided and running in a GitHub
+          Actions environment, the PR number will be automatically detected from GitHub Actions
+          environment variables.
       --build-configuration <build_configuration>
           The build configuration to use for the upload. If not provided, the current version will
           be used.