actiona: consume opencv CXX components when available

We do not default to `.dev` or any other output because `make-derivation.nix` needs to be able to select the `.dev` output,
and specifying an output prevents it from doing so.

Signed-off-by: Connor Baker <ConnorBaker01@gmail.com>

pkgs/by-name/ac/actiona/package.nix

@@ -44,7 +44,10 @@ stdenv.mkDerivation (finalAttrs: {
   buildInputs = [
     bluez
     libnotify
-    opencv
+    # NOTE: Specifically not using lib.getOutput here because it would select the out output of opencv, which changes
+    # semantics since make-derivation uses lib.getDev on the dependency arrays, which won't touch derivations with
+    # specified outputs.
+    (opencv.cxxdev or opencv)
     qt6.qtbase
     qt6.qtmultimedia
     qt6.qttools