MAINT: rename piqtree2 to piqtree

[rmcar17]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 12306973597

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 76 of 76 (100.0%) changed or added relevant lines in 26 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 98.821%

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Totals
Change from base Build 12290454172:	0.0%
Covered Lines:	1090
Relevant Lines:	1103

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💛 - Coveralls