fix: Fix corner case when running Pipeline that causes it to get stuck in a loop

[silvanocerza]

Proposed Changes:

With PR #7434 we introduced this bug that would cause a Pipeline to get stuck in an infinite loop when running if the following conditions are met:

• The first Component has all defaults for its inputs
• The first Component receives one input from the user
• The first Component receives one input from a loop in the Pipeline
• The second Component has at least one default input

This PR fixes this bug by making sure that a Component with defaults has all the necessary inputs to run when adding it in the to_run list when we notice we're stuck in a loop with Components that can still run.

How did you test it?

I added a unit test to reproduce the issue.

Notes for the reviewer

This bug has been discovered after this message on Discord.

Checklist

• I have read the contributors guidelines and the code of conduct
• I have updated the related issue with new insights and changes
• I added unit tests and updated the docstrings
• I've used one of the conventional commit types for my PR title: fix:, feat:, build:, chore:, ci:, docs:, style:, refactor:, perf:, test:.
• I documented my code
• I ran pre-commit hooks and fixed any issue

[coveralls]

Pull Request Test Coverage Report for Build 8646811598

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 7 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.009%) to 89.934%

---

Files with Coverage Reduction	New Missed Lines	%
core/pipeline/pipeline.py	7	94.05%

Totals
Change from base Build 8643226904:	0.009%
Covered Lines:	6254
Relevant Lines:	6954

---

💛 - Coveralls

[masci]

Minor comments