Fix validation for input URLs

Description

• Fix incorrect URL matching when selecting the fetcher to use
• Remove on:push rules for workflows triggering duplicate runs
• Enable the paralleltest and testpackage linters, update current test files to accommodate

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings