sync: Fix parsing of gcrypt::rsync:// urls that use a relative path

Such an url is not valid; parseURI will fail on it. But git-annex doesn't
actually need to parse the url, because all it needs to do to support
syncing with it is know that it's not a local path, and use git pull and
push.

(Note that there is no good reason for the user to use such an url. An
absolute url is valid and I patched git-remote-gcrypt to support them
years ago. Still, users gonna do anything that tools allow, and
git-remote-gcrypt still supports them.)

Sponsored-by: Jack Hill on Patreon

Remote/GCrypt.hs

@@ -266,7 +266,7 @@ gCryptSetup _ mu _ c gc = go $ fromProposedAccepted <$> M.lookup gitRepoField c
 				let u = genUUIDInNameSpace gCryptNameSpace gcryptid
 				if Just u == mu || isNothing mu
 					then do
-						method <- setupRepo gcryptid =<< inRepo (Git.Construct.fromRemoteLocation gitrepo)
+						method <- setupRepo gcryptid =<< inRepo (Git.Construct.fromRemoteLocation gitrepo False)
 						gitConfigSpecialRemote u c' [("gcrypt", fromAccessMethod method)]
 						return (c', u)
 					else giveup $ "uuid mismatch; expected " ++ show mu ++ " but remote gitrepo has " ++ show u ++ " (" ++ show gcryptid ++ ")"