Update CITATION.cff (arXiv -> SoftwareX)

[slayoo]

No description provided.

[github-actions]

CLANG WARNINGS:

error: no input files [clang-diagnostic-error]
error: no such file or directory: '/github/workspace/files/*.cpp' [clang-diagnostic-error]
error: unable to handle compilation, expected exactly one compiler job in '' [clang-diagnostic-error]

CPPCHECK WARNINGS:

CITATION.cff:26:9: error: syntax error [syntaxError]
  year: 2024
        ^
clang-tidy-report.txt:3:101: error: syntax error [syntaxError]
error: unable to handle compilation, expected exactly one compiler job in '' [clang-diagnostic-error]
                                                                                                    ^
nofile:0:0: information: Active checkers: There was critical errors (use --checkers-report=<filename> to see details) [checkersReport]