Enable Python 3.9 tests again - for lower bound

[jan-janssen]

  ├─ python 3.9**  is installable with the potential options
  │  ├─ python [3.9.0|3.9.1|...|3.9.9] would require
  │  │  └─ python_abi 3.9.* *_cp39, which can be installed;
  │  └─ python [3.9.0|3.9.1|...|3.9.7], which can be installed;
  └─ scipy 1.14.0**  is not installable because there are no viable options
     ├─ scipy 1.14.0 would require
     │  ├─ python >=3.10,<3.11.0a0 , which conflicts with any installable versions previously reported;
     │  └─ python_abi 3.10.* *_cp310, which conflicts with any installable versions previously reported;
     ├─ scipy 1.14.0 would require
     │  ├─ python >=3.11,<3.12.0a0 , which conflicts with any installable versions previously reported;
     │  └─ python_abi 3.11.* *_cp311, which conflicts with any installable versions previously reported;
     └─ scipy 1.14.0 would require
        └─ python_abi 3.12.* *_cp312, which conflicts with any installable versions previously reported.

[coveralls]

Pull Request Test Coverage Report for Build 10054184506

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 70.91%

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Totals
Change from base Build 10052707704:	0.0%
Covered Lines:	10701
Relevant Lines:	15091

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💛 - Coveralls