fix(BudgetTerm.f90): ensure that the size of an array is >0 before deallocating #3669

Job	Run time
Check format	2m 26s
Smoke test	6m 19s
Build	1m 45s
Test GNU fortran (macos-13, false)	58m 6s
Test Intel fortran (ubuntu-22.04)	43m 15s
Test GNU fortran (macos-14, false)	16m 59s
Extended testing (ubuntu-22.04)	18m 9s
Test Intel fortran (macos-13)	32m 9s
Test GNU fortran (macos-14, true)	31m 13s
Extended testing (macos-13)	41m 55s
Test Intel fortran (windows-2022)	39m 19s
Extended testing (windows-2022)	56m 34s
Test GNU fortran (ubuntu-22.04, false)	21m 23s
Test GNU fortran (ubuntu-22.04, true)	14m 20s
Test GNU fortran (windows-2022, false)	31m 42s
	6h 55m 34s

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