Fixes further redundant XML ids#726

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funkyfuture wants to merge 3 commits intofaustedition:masterfrom

Commits on Jul 30, 2024

Adds a Gihub Actions workflow to test for XML encoding errors
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transcript/gm_duesseldorf/KK123_20/01.xml: Fixes redundant XML id
funkyfuture
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transcript/gsa/389773/0002.xml: Fixes redundant XML id
funkyfuture
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