Update Portugal holidays: fix Carnival date #3632

Job	Run time
Run pre-commit	21s
Test Python 3.8 on macOS-latest	2m 19s
Test Python 3.9 on macOS-latest	2m 28s
Test Python 3.10 on macOS-latest	2m 26s
Test Python 3.11 on macOS-latest	1m 22s
Test Python 3.12 on macOS-latest	1m 34s
Test Python pypy-3.9 on macOS-latest	2m 32s
Test Python pypy-3.10 on macOS-latest	4m 2s
Test Python 3.8 on ubuntu-latest	49s
Test Python 3.9 on ubuntu-latest	45s
Test Python 3.10 on ubuntu-latest	52s
Test Python 3.11 on ubuntu-latest	51s
Test Python 3.12 on ubuntu-latest	55s
Test Python pypy-3.9 on ubuntu-latest	2m 23s
Test Python pypy-3.10 on ubuntu-latest	2m 27s
Test Python 3.8 on windows-latest	1m 25s
Test Python 3.9 on windows-latest	1m 23s
Test Python 3.10 on windows-latest	1m 19s
Test Python 3.11 on windows-latest	1m 37s
Test Python 3.12 on windows-latest	1m 18s
Test Python pypy-3.9 on windows-latest	5m 10s
Test Python pypy-3.10 on windows-latest	5m 15s
Build distribution	29s
Finish coveralls	7s
Publish to PyPI	0s
	44m 9s

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