CI/CD

Update Greece holidays (#1663) #3534

Job	Run time
Run pre-commit	34s
Test Python 3.8 on macOS-latest	1m 24s
Test Python 3.9 on macOS-latest	1m 28s
Test Python 3.10 on macOS-latest	1m 26s
Test Python 3.11 on macOS-latest	1m 44s
Test Python 3.12 on macOS-latest	1m 31s
Test Python pypy-3.9 on macOS-latest	6m 11s
Test Python pypy-3.10 on macOS-latest	5m 6s
Test Python 3.8 on ubuntu-latest	45s
Test Python 3.9 on ubuntu-latest	50s
Test Python 3.10 on ubuntu-latest	48s
Test Python 3.11 on ubuntu-latest	51s
Test Python 3.12 on ubuntu-latest	56s
Test Python pypy-3.9 on ubuntu-latest	2m 22s
Test Python pypy-3.10 on ubuntu-latest	2m 18s
Test Python 3.8 on windows-latest	1m 16s
Test Python 3.9 on windows-latest	1m 37s
Test Python 3.10 on windows-latest	1m 24s
Test Python 3.11 on windows-latest	1m 36s
Test Python 3.12 on windows-latest	1m 28s
Test Python pypy-3.9 on windows-latest	4m 57s
Test Python pypy-3.10 on windows-latest	5m 2s
Build distribution	32s
Finish coveralls	5s
Publish to PyPI	0s
	46m 11s

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