Update airwindows for fixed armhf build

Signed-off-by: falkTX <falktx@falktx.com>

sources/plugins/airwindows-lv2/debian/changelog

@@ -1,4 +1,4 @@
-airwindows-lv2 (6:1.0-1kxstudio1) focal; urgency=medium
+airwindows-lv2 (6:1.0-1kxstudio3) focal; urgency=medium
 
   * Initial package
 

sources/plugins/airwindows-lv2/debian/control

@@ -3,7 +3,9 @@ Section: sound
 Priority: optional
 Maintainer: falkTX <falktx@falktx.com>
 Build-Depends: debhelper-compat (= 13),
-  kxstudio-audio-plugin-tester (>= 6)
+  kxstudio-audio-plugin-tester (>= 7),
+  cmake,
+  pkg-config
 Standards-Version: 4.5.0
 Homepage: https://github.com/hannesbraun/airwindows-lv2
 Rules-Requires-Root: no