Fix #286, Documentation Duplicate Check

[ArielSAdamsNASA]

Checklist (Please check before submitting)

• I reviewed the Contributing Guide.
• I signed and emailed the appropriate Contributor License agreement to [email protected] and copied [email protected].

Describe the contribution
A clear and concise description of what the contribution is.
Fixes #286.
Used with #273.
Skips individual steps for the OSAL and cFE jobs. Does not skip the last three steps that generates the PDFs.

Testing performed
Tested locally on forked repo. PDFs were updated in gh-pages branch.

Expected behavior changes
The documentation workflow should generate and update the cFE and OSAL User Guides.

Contributor Info - All information REQUIRED for consideration of pull request
Ariel Adams, ASRC Federal