docs(go): improve docs on troubleshooting default go detection strategy

[annaowens]

Improving documentation on how to ensure the default Go detection strategy runs.

This documentation will be linked in communications that encourage users to troubleshoot the reasons why they are seeing the fallback Go detection strategy running in their pipelines.

[github-actions]

👋 Hi! It looks like you modified some files in the Detectors folder.
You may need to bump the detector versions if any of the following scenarios apply:

• The detector detects more or fewer components than before
• The detector generates different parent/child graph relationships than before
• The detector generates different devDependencies values than before

If none of the above scenarios apply, feel free to ignore this comment 🙂

[annaowens]

Closing in favor of #821