Add {redo-}hier-par-to-syn- targets to Makefile build flow

[jerryz123]

Minor QoL improvement

Related PRs / Issues

Type of change:

• Bug fix
• New feature
• Other enhancement

Impact:

• Change to core Hammer
• Change to a Hammer plugin
• Other

Contributor Checklist:

• Did you set master as the base branch?
• Did you state the type-of-change/impact?
• Did you delete any extraneous prints/debugging code?
• (If applicable) Did you add documentation for the feature?
• (If applicable) Did you update the poetry.lock file if you updated the requirements in pyproject.toml?
• (If applicable) Did you add a unit test demonstrating the PR?
• (If applicable) Did you run this through the e2e integration tests?
• (If applicable) Did you update the submodules in e2e/ if this feature depends on updated plugins?

[harrisonliew]

To fix unit tests, need to add this target to the expected targets in test_hier_makefile in tests/test_build_systems.py.

If you're going to add redo-hier-par-to-syn, then might as well also add hier-par-to-syn. They both also need to be .PHONY.