ci: fix typo and more printing in generate_build_jobs

There is usually a benefit of having CI jobs print properly what is
going on.

Signed-off-by: Pablo Correa Gómez <pabloyoyoista@postmarketos.org>
Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/7868>

.ci/lib/generate_build_jobs.py

@@ -73,7 +73,7 @@ class Device:
 
     @property
     def testing_dependencies(self) -> set[str]:
-        # TODO: Source this from the APKGBUILD
+        # TODO: Source this from the APKBUILD
         return {"postmarketos-mkinitfs-hook-ci"}
 
     @cached_property
@@ -168,6 +168,7 @@ if __name__ == "__main__":
 
     # Get the list of supported devices
     supported_devices = Device.supported_devices()
+    print(f"Supported devices: {[d for d in supported_devices.values()]}")
 
     archs = ArchTagSet()
     devices_under_test = set()