cmds.projects.CmdRequiredOsPkg: Sort output

The list of OS packages printed by required-os-pkg is not reproducible: the
packages are collected in a set, and the set's iteration order depends on
the hash seed of the Python process, so two runs of the same invocation can
print the same packages in different orders.

Print the sorted list instead. The order of a package list is meaningless
to the package manager, and the output is now stable across runs and hash
seeds.

Signed-off-by: Jan Lindemann <jan@janware.com>
Assisted-by: unsloth/Qwen3.8-27B-GGUF:Q4_K_M with pi.dev v0.86.1

src/python/jw/pkg/cmds/projects/CmdRequiredOsPkg.py

@@ -66,6 +66,7 @@ class CmdRequiredOsPkg(Cmd):  # export
                 vals = self.app.get_values(deps, ['pkg.requires.' + sec], [flavour])
                 if vals:
                     requires |= set(vals)
-        out = [f'"{dep}"' for dep in requires] if args.quote else requires
+        out = sorted(requires)
+        out = [f'"{dep}"' for dep in out] if args.quote else out
         # TODO: add all not in build tree as -devel
         print(' '.join(out))