Update rexml to 3.4.4 for Ruby 3.4 (CVE-2025-58767) (#14795) #660

Job	Run time
omnibus compilations, trigger	3s
omnibus compilations, #1	29m 50s
omnibus compilations, #2	31m 15s
omnibus compilations, #9	23m 51s
omnibus compilations, #3	28m 37s
omnibus compilations, #12	25m 47s
omnibus compilations, #4	25m 46s
omnibus compilations, #5	27m 47s
omnibus compilations, #6	28m 37s
omnibus compilations, #7	27m 27s
omnibus compilations, #10	27m 46s
omnibus compilations, #8	28m 44s
omnibus compilations, #11	27m 33s
omnibus compilations, result	2s
	5h 33m 5s

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