neil new: Support Git repos without tags

[rads]

My PR to add deps-new support for the Kit framework was recently merged. Right now there are no tags in the Git repo so the following command fails without the --latest-sha flag:

$ neil new io.github.kit-clj/kit foo
Error building classpath. Library io.github.kit-clj/kit has coord with missing sha
----- Error --------------------------------------------------------------------
Type:     java.io.FileNotFoundException
Message:  /Users/rads/.clojure/.cpcache/F3BEBCF530414D55DD81604838227B4C.cp (No such file or directory)
Location: /Users/rads/.gitlibs/libs/io.github.babashka/neil/350c7ce94060bb0a6e57b32d35c37d9b17d88970/neil:480:3

Related:

• Error when installing from a Git repo with no tags bbin#55