Shared packs: Depend on codeql/tutorial from all language libraries

This allows `import tutorial` from queries targeting
any language, just like before, while removing the
duplicate copies of `tutorial.qll`.

swift/ql/lib/qlpack.yml

@@ -7,3 +7,4 @@ upgrades: upgrades
 library: true
 dependencies:
   codeql/ssa: ${workspace}
+  codeql/tutorial: ${workspace}