🚧Handle GitHubActionsService issue

[CalvinWilkinson]

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• I have updated the title without removing the 🚧 emoji.

Description

An error is thrown when trying to get the pull request number for a target when the run is not a pull request run.

Here is the link to the CICDTest to the 🪲Debuggin Workflow run of when the error occurred.

Error Screenshot:

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More Information:
In the GitHubActionsService class, the PullRequestNumber property gets the pull request number from either the pull request number value sent in via the CLI during local builds or from the GitHubActions.Instance.PullRequestNumber property during server builds.

The problem is when running a server run that is not a pull request. For example, manual execution using the workflow_dispatch event. Because the run is not a pull request run, their is no pull request data available. Internally in the property, NUKE is using JObject to get the pull request data from some JSON data. But since that data is not available, it explodes. 💥

To fix this, make a change in the GitHubActionsService.PullRequestNumber property. Just first check to see if the build is a server build. If so, use the GitHubActions.Instance.PullRequestNumber value. If not, return null.

Acceptance Criteria

• Bug fixed

ToDo Items

• Change type labels added to this issue. Refer to the Change Type Labels section below.
• Priority label added to this issue. Refer to the Priority Type Labels section below.
• Issue linked to the correct project (if applicable).
• Issue linked to the correct milestone (if applicable).
• Draft pull request created and linked to this issue (only required with code changes).

Issue Dependencies

No response

Related Work

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Additional Information:

Change Type Labels

Change Type	Label
Bug Fixes	🐛bug
Breaking Changes	🧨breaking changes
New Feature	✨new feature
Workflow Changes	workflow
Code Doc Changes	🗒️documentation/code
Product Doc Changes	📝documentation/product

Priority Type Labels

Priority Type	Label
Low Priority	low priority
Medium Priority	medium priority
High Priority	high priority

Code of Conduct

• I agree to follow this project's Code of Conduct.