Added mzspeclib convert & describe tools #2027

Job	Run time
Setup cache and determine changed repositories (3.11)	1m 1s
Lint Python scripts (3.11)	15s
Lint tool-list (3.11)	36s
Lint R scripts (ubuntu-24.04, release)	1m 2s
Check file sizes	9s
Test tools (1, 3.11)	3m 33s
Test tools (0, 3.11)	3m 42s
Test tools (2, 3.11)	3m 0s
Combine chunked test results (3.11)	34s
Check workflow success	3s
Deploy	0s
Report deploy status	0s
	13m 55s

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