CICD

Bump quick-xml from 0.30.0 to 0.31.0 #1497

Job	Run time
Test library (macos-latest, stable)	2m 31s
Test library (macos-latest, nightly)	1m 24s
Lint	2m 55s
Test coverage (gcc-10, clang-11)	2m 43s
Test library (ubuntu-latest, stable)	1m 43s
Test coverage (gcc-11, clang-12)	2m 30s
Test library (ubuntu-latest, nightly)	1m 51s
Test coverage (gcc-11, clang-13)	3m 31s
Test library (windows-latest, stable)	4m 31s
Test library (windows-latest, nightly)	2m 43s
	26m 22s

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