Update name and URL of "DunogeonFR"

[per1234]

This PR consists of two changes:

• Change URL from https://github.com/leresteux/DunogeonVF.git to https://github.com/leresteux/DunogeonFR.git (companion to Update repositories.txt #2271)
• Change name from Dunogeon to DunogeonFR (resolves Rename DunogeonVF to DunogeonFR #2270)

Since the name change operation on the database is actually a removal followed by automated re-indexing on the next job run, the URL update will occur as a matter of course. For this reason, the only operation required from the backend maintainer is a standard name change procedure.

[umbynos]

Done:

2022/12/22 10:36:29 Loaded 5441 libraries from DB
Removing Dunogeon
Success!